Brendan - I’m very late back to the party (which really warmed up while I was away), but just to say that your parsing of 1d is the same as mine. Took me a while to work it out (after thinking too long about possible subtractions), but I’m sure it’s right and I really like it!
I'm late to this, but have to say I agree with the other posters who didn't like it. I can accept these tricky special instructions type puzzles at Christmas time and suchlike. But I yearn for a normal puzzle. Hopefully next Saturday. Happy new year though one and all.
Another fan here - really enjoyed this! I can't remember who gave the 'anatomical' hint for 12a but thank you - I'd been stuck on that corner for ages. It made me smile.
LOI = Last One In
FOI = First One In
COD = Clue Of (the) Day
BRB = Big Red Book (Chambers Dictionary)
PDM = Penny Drop Moment
BIFFED = Bunged In From Definition, hence BIFF
GWIT = Guess What I Think