Hi Polly,
A very happy new year to you also.
I can give clues for a few of those but some I still need.
52. I got this from a list of fish and then worked the clue to fit. Unusual fish. It begins with two initials for Box Office and ends with two letters for I love. Inbetween are initials for an American state and initials for cricket club.
68. The show-jumper is a mammal(?) - people like to swim with them. Starts with a kind of derogatory term for a policeman going backwards and then the heart (middle letters) of China
76. For a long time I couldn't get beyond trying to fit Charles into this but then took the clue literally for 'first son' = S. A foreign way of expressing The or A like La, Le but not those!! Then one letter for against like in a football match one team against another team and the usual two letters to express Her Majesty/Queen. Answer is the young of certain fish. S is at the end.
86. Use the end letters of SNAke guttED and letter for Energy and letter for student and make anagram.
Hope these clues aren't too complicated.
6. I have an answer but it's not the usual plural so I'm not sure of it.
27. Has been driving me mad!! Probably starts with E
30. Is it the name of a singer - could spot one with letters from 'uses a lure'
32. I think I need a G & T with this one.
Any help much appreciated.