No real major sticking points on this one, although perhaps a couple of bones of contention on one or two clue structures.  Was a little disconcerted by how readily familiar I seem to be with various types of food - will have to make a bee-line for the bathroom scales this evening…

Across
1 PARK,IN - as a dyed-in-the-wool Southerner, it’s not a concoction I’m overly familiar with.
4 CI(A,BA)TTA - “round loft” = attic(rev)
10 RATAFIA - (at a fair)* I didn’t do myself any favours by initially pencilling in FRITATA here!
12 OATS - hidden, and an &lit too, I suppose.
17 BOURBON  - double def’n.  Never did figure out why those (eminently dunkable) biscuits were named after an ancient French dynasty.
20 BLOOMER - double def’n, plus a reference to undies if you add an “s”(ingular).
21 CELERY - (recycle)*-c. One of the most egregious attempts at “double duty” I’ve seen in a while.  “Recycle” needs to be used reflexively as its own anagrind.
24 CLEMENT,IN,E
27 RIS,OTTO - Sir(rev) + (Emperor) Bismarck.
30 BIG,A,RADE - (dear)*. A slightly obscure citrus fruit, which I recall from another puzzle in the distant past.

Down
2 RATATOUILLE - (out all irate)*
3 INFO - hidden; but seems gratuitous and inexcusable to use a randomly generated name as the fodder (apologies, Martin, if I should have heard of you!).
5 IN(-de)CISION
6 BEEF,BURG,ER - grub(rev)
8 ABRADE - anagram of 30A (minus I+G)
9 D,AIRY - D=deserted is hardly bog-standard, but still simple enough.
14 EX,ONE,RATION
15 C.S. FORESTER - (force’s rest)*
18 WEST,WOOD - Vivienne of that ilk.
19 PYRE,NEES - seen(rev)
22 SCA(RA)B - coincidentally, the same answer in precisely the same location as yesterday’s puzzle!
28 SAG(-e)

I solved most of this online early this morning without knowing who the setter was. I thought it seemed a little easier than recent offerings from Dac - with quite a few double definitions - but none the worse for it. Sound clueing as always, and a couple of new words and people to add to the mental database, so all good.