Independent on Sunday 1892 Filbert

Thank you to Filbert. Definitions are underlined in the clues.
Across
1. Substitute second one of three Shakespearean sisters (6)
SWITCH : S(abbrev. for “second” in time notation) + WITCH(one of three sisters in the Shakespeare play, Macbeth).

5. Outside in deluge, fellow gets drier in the car (8)
DEMISTER : 1st and last letters of(Outside in) “deluge” + MISTER(term of address for a man/fellow).
Defn: … that removes condensation from the windscreen.

9. Dangerous building‘s engineers caught by appropriate criminal charge (8)
FIRETRAP : RE(abbrev. for Royal Engineers in the British military) contained in(caught by) FIT(appropriate/suitable) + RAP(a criminal charge/a statement in a court of law that someone has committed a particular crime).

10. Plenty breaking the law (6)
WEALTH : Anagram of(breaking) THE LAW.
Defn: …/an abundance of.

11. Doctor photos including bottom, prick and leg (7,7)
PLASTIC SURGEON : PICS(or “pictures”/photos) containing(including) LAST(the bottom, say, of a list of items) + URGE(to impel, in archaic terms, to “prick”) plus(and) ON(leg, that side of a cricket pitch that is to the left of a right-handed batter when facing the bowler).

12. Rose planted in west-facing flower garden (4)
GREW : Hidden in(planted in) reversal of(west-facing, in an across clue) “flower garden”.

14. Gold fried tortilla filled by Romeo the Italian way (10)
AUTOSTRADA : AU(symbol for the chemical element, gold) + TOSTADA(a fried tortilla in Mexican cuisine) containing(filled by) R(letter represented by “Romeo” in the phonetic alphabet).
Defn: …/motorway.

17. Slow and careful French composer reduced tempo (10)
DELIBERATE : “Delibes”( Léo, French composer, best known for his ballets and operas) minus its last letter(reduced) + RATE(tempo/speed).

19. Strand unwound from ball left on court (4)
WOOL : L(a.”left”) placed after(on) WOO(to court/to pursue and charm).

20. Doctor’s cleverer friend treated more shell shock (8,6)
SHERLOCK HOLMES : Anagram of(treated) MORE SHELL SHOCK.
Answer: The detective friend of Dr. John Watson in the stories by Sir Arthur Conan Doyle.

23. Mother with 50p, say, brought back root vegetable (6)
MANIOC : MA(a familiar term for one’s mother) plus(with) reversal of(…, brought back, in an across clue) COIN(an example of which/say, is 50p in the UK).

24. Old pope inside rather than outside church, and disrobed (8)
INNOCENT : IN(inside) + NOT(rather than/indication of preference, as in “I would resign rather than carry on”) containing(outside) [ CE(abbrev. for the Church of England) + “and” minus its 1st and last letters(disrobed) ].
Answer: One of several former Roman Catholic Popes.

25. Attitude I assume is Olympian (8)
POSEIDON : POSE(attitude/stance) + I + DON(to take on/assume, say, a role).
Answer: In Greek mythology, one of the Olympian gods.

26. US et al organised simultaneous gunfire, say (6)
SALUTE : Anagram of(… organised) US ET AL.
Defn: …, a ceremonial firing of artillery as a sign of respect, welcome or honour for dignitaries or to mark a special event.

Down
2. Obvious trail grew blurred (4,5)
WRIT LARGE : Anagram of(… blurred) TRAIL GREW.
Defn: …/highly visible.

3. Children anxious when putting electronics together (5)
TEENS : TENSE(anxious/strained) with E,E(twice prefix for things electronic) placed next to each other(when putting … together).

4. Huge museum valued old stuff, bagging millions (9)
HERMITAGE : HERITAGE(valued old stuff/things, eg. traditions, handed down from generation to generation) containing(bagging) M(abbrev. for “millions”).
Answer: Huge museum in St. Petersburg, Russia.

5. 500 pies to supply store (7)
DEPOSIT : Anagram of(… supply/suppley) [ D(Roman numeral for 500) + PIES TO].

6. Our team runs after flash vehicle driven on the pitch? (5)
MOWER : [ WE(our team/side) + R(abbrev. for “runs” in cricket scores) ] placed below(after, in a down clue) MO(short for “moment”/a short period of time/flash).

7. Welfare services in Worcestershire going up, an alarming figure (9)
SCARECROW : CARE(the provision of help to people with living conditions or financial problems/welfare services) contained in(in) reversal of(… going up, in a down clue) WORCS(abbrev. for Worcestershire, the English county).
Alarming…supposedly:

8. What some pappardelle at Enzo’s might be? (5)
EATEN : Hidden in(some) “pappardelle at Enzo”.

13. Spooner’s low-alcohol champagne perhaps driver’s limit (5,4)
WHITE LINE : Spoonerism of [ “light”(descriptive of a drink, say, a beer or wine, with reduced alcohol by volume content/low-alcohol) “wine”(an example of which/perhaps is champagne) ].
Defn: That which is painted on a road surface that marks the boundary of a vehicle’s lane, that, in some cases, should not be crossed over/….

15. Boiling southern trip (3,6)
SEE THINGS : SEETHING(in a state of extreme anger/boiling) + S(abbrev. for “southern”).
Defn: To hallucinate when in a drug-induced state/to ….

16. Flip deep-fried pastry, pinching runny nose (2,4,3)
DO ONES NUT : DONUT(or doughnut, a dep-fried pastry) containing(pinching) anagram of(runny) NOSE.
Defn: …/to lose one’s temper.

18. Sell uranium which military operation has seized (7)
AUCTION : U(symbol for the chemical element, uranium) contained in(which … has seized) ACTION(a military operation/battle).
Defn: … to the highest bidder.

20. Hot-tub party being made sexless (5)
SPADO : SPA(a hot-tub installed in, say, one’s home) + DO(a social function/party).
Defn: A living creature/being who has been neutered/made sexless.

21. Sensible group of investigators has uncovered clue first (5)
LUCID : CID(abbrev. for the Criminal Investigation Department, a group of investigators in the police) placed below(has … first, in a down clue) 1st and last letters of deleted from(uncovered) “clue”.
Defn: …/capable of rational thought.

22. Anaesthetic that’s laughter-inducing, about to be inhaled (5)
LOCAL : LOL(in internet slang, acronym for “laugh out loud”/laughter-inducing) containing(… to be inhaled) CA(abbrev. for “circa”, about/approximately when refering to dates or time periods).
Answer: …, short for “local anaesthetic”.