Seafood with a hint of lemon and sorbet cocktail (7)
I believe the answer is:
lobster
'seafood' is the definition.
(lobster is a kind of seafood)
'a hint of lemon and sorbet cocktail' is the wordplay.
'a hint of' indicates taking the first letters.
'and' is a charade indicator (letters next to each other).
'cocktail' indicates anagramming the letters.
The first letter of 'lemon' is 'l'.
'sorbet' is an anagram of 'obster'.
'l'+'obster'='LOBSTER'
'with' acts as a link.
(Other definitions for lobster that I've seen before include "Edible marine crustacean" , "Bolster (anag.)" , "Marine creature" , "Bolster up te shellfish" , "Tommy no longer" .)