Many thanks sudokulover - the hints were very helpful.
If your still there my last three clued lights are:
6d What gymnast has but athlete hasn't? Yes and no (7) ?I?G?E? (SINGLET?)
9d Some consideraable playwright's long part (4) ???E
24a Skinny creature slimmed (4) ????
I have 1A/40, so when I can work out the above, it should all fit into place!