Sherbet flavor
I believe the answer is:
lemon
'sherbet flavor' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lemon that I've seen before include "Tone" , "fruit is on offer" , "Fruit - 11 (anag)" , "Fruit - useless thing" , "Citrus fruit (is it the answer?)" .)