Like some apples (4)
I believe the answer is:
tart
'like some apples' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tart that I've seen before include "Bitter - pudding" , "Professional woman" , "Bitter - sweet - floozie" , "See 10" , "Flan; acidic" .)