Just finished:LOI the first half of 14, after a nudge of "mother" from some of the most recent posts here.
Only got the penultimate, 15, after the nudge of someone who said something like "I hadn't known that meaning of mole", which pushed me to think beyond animal/spy/pier!
FOI 1/2d, with help of husband who looked at the puzzle first.
COD: I think the ingenious 6.
Lots of rather nice clues: an enjoyable puzle.