sorry for repeat - my computer didn't update and I thought it hadn't posted. Thanks j - I had been trying to do a separate substitution for each word because I thought that's what the rubric indicated - never heard of 7 down!
6a - substitute the beginning to rehearse for the second start of chorus in a word for young bird. Def is become more cheerful. Then alter the end thematically to get the tennis champion (who is more famous than I at first thought)
I’m also stuck on 33a (and 26d) and have probably spent as long on these two as all the others put together. I’d appreciate very gentle nudges (not answers please) so I can put it down. I never submit my solutions. Thanks