Oh dear - struggling as usual on a very wet sandbank.
I don't wan't too much to be given away but can I point to my difficulty in the SW corner.
I have solved 22 down and entered in the straightforward way; i've guessed that 3 down is the instrument from 2 down but entered in a different direction. 27 down is an anagram. If this is all correct can someone offer me help with 26 across - nothing seems to fit.
Also could someone tell me where the second half of 27 goes?
I'll have another bash but am nowhere nearer finding the theme. Back to ball juggling but thanks anyway.