Fruity drink is a hit (5)
I believe the answer is:
punch
I believe this is a double definition.
'fruity drink' is the first definition.
(I've seen this in another clue)
'a hit' is the second definition.
(I know that punch is a more specific form of the action hit)
'is' acts as a link.
(Other definitions for punch that I've seen before include "Drink; hole maker" , "Strike; wine-based drink" , "Alcoholic fruit drink" , "Poke" , "Blow with the hand - hot drink" .)