Day for fruit (4)
I believe the answer is:
date
I believe this is a double definition.
'day' is the first definition.
(date is a kind of day)
'fruit' is the second definition.
(date is a kind of fruit)
'for' acts as a link.
(Other definitions for date that I've seen before include "Girlfriend perhaps" , "A social appointment - check calendar" , "Appointment - fruit of palm" , "eg 1588" , "Go out with" .)