I could have sworn I submitted these questions not very long ago, but seem to have lost them ... an age thing perhaps?
Anyway, stuck on a few ...
10a understood about blocking wily subterfuge to send down student (9)
r?s?i?a?e
23a one interrupting beak causes row (5) e?i?e
24a play patience (9) t???r???e
21d ring in private (5) i???r