Star who's the pick of the bunch? (3,6)
I believe the answer is:
top banana
I believe this clue is a double definition.
'star' is the first definition.
(I've seen this before)
'the pick of the bunch?' is the second definition.
(I've seen this before)
'who's' is the link.
(Other definitions for top banana that I've seen before include "head" , "Most important person in group (informal)" , "1" , "Star entertainer" , "pick of the bunch?" .)