An excellent crossword, not easy but — as should be the case — its difficulties were conquerable with some persistence. It seems to me that, with one or two very very slight exceptions, Gemelo has been scrupulous in his accuracy.
My guess is that anyone who does these crosswords will have a copy of Chambers to hand and so won’t need everything to be spelled out. In the parsing I have confined myself to explaining when the wordplay is not immediately clear.
Definitions in crimson, underlined. Anagrams indicated *(like this) or (like this)*