Late fruit picked up (4)
I believe the answer is:
slow
'late' is the definition.
(I've seen this before)
'fruit picked up' is the wordplay.
'fruit' becomes 'sloe' (I've seen this before).
'picked up' indicates a 'sounds like' (homophone) clue.
'sloe' sounds like 'SLOW'.
(Other definitions for slow that I've seen before include "Intellectually dull" , "Owls (anag.)" , "(Clock) behind" , "Crawling" , "Lacking in pace or interest" .)