Oh wow! What a brilliant crossword. I found it very difficult, but fair, and ultimately very rewarding. The theme eluded me for a long time, but it’s so clever!
FOI 10a, LOI 7d - I’d transposed the first two letters of the second word in 14a (which still gave a solution that made sense). Far too many candidates for COD, I like pretty much all the themed clues, of the others I particularly liked 29a.
Can anyone tell me how 15d fits into the theme? I’m also struggling to parse 23d, but I’m sure of my answer. And does the third last letter in 18d come from the first word in the clue?
Best wishes everyone!