I agree with your other correspondent - this month's crossword IS particularly difficult.
I am stuck on several, but I will mention just 3:
14a: Cautious enquiries turned on vocal performances (7) n?s????
8a: A man securing piano, I note? That's a source of relief (7) a?p???? I know I ought to get this, but I don't.
9a: Start on guitar, boy?End playing, please (7) ??????n