24d: MAMMOTH SEA SURGE EXCITED AUTHOR (8,7) - I know it is an anagram, but can't get it
E???R?E?/M?U????
46d: Vaguely see ladies and gents up at the top (7) - L?O???? Is it looking and if so, why?
30a: Robots made by a university fellow backed by a group of volunteers (8) - ??T???T?
53a: Reach one fallen woman - must get taken to a church(7) - A?????E
Would love some help on these please!