I don't think I've attempted such a difficult crossword since the days of those huge crosswords which were on a grid of 27 x 27, I think, please help.
29 A Space craft following girl and family: I'm serious. (6,5)
??k???/????t
32 A Make fun when Charlie, entering briefly to prepare for karaoke?
(4,3,4) ????/???/???k
37 A Studies end of ancient cutting wearing glasses.(8) ????????
47 A Inferior stuff that is hard to fix.(7) s??????
13 D Lumbering beast close to large jetty. (7,5) ?a?d?n?/?????