Finished, early for me.
Never heard of the musical term in 25 despite years of choral singing.
Can't parse 17d: can see a couple of elements but not the first letter.
Misled myself by writing "breaking the moulds" for 8d: (Staffordshire pot banks for the "bankers"), but then solved 17a with a nudge from this forum and realised the crosser was wrong.
FOI: 2D
LOI:23D (whole SE corner was slow)
COD: perhaps 18d, which had me flummoxed for a while.
Thanks for a few little helps from various posters above!