It's a swine this week - but thanks to earlier answers I'm down to four :
41A - One carrying sound equipment may like a sign (7)
T???M?C
42D - Visibly nervous fool cheating (not to worry) (9)
??I???I?G
50A - Greasy youth on scooter touring northern town (8)
R???A?N?
&
52D - Sound of French pop duo (4)
?A?R