Boss, best of the bunch? (3,6)
I believe the answer is:
top banana
I believe this is a double definition.
'boss' is the first definition.
(top banana means a boss or leader)
'best of the bunch?' is the second definition.
(I've seen this in another clue)
(Other definitions for top banana that I've seen before include "Boss (slang)" , "Best of the bunch!" , "1" , "organisation chief" , "first on hand?" .)