Question relatives with fruit (7)
I believe the answer is:
pumpkin
'fruit' is the definition.
(I've seen this before)
'question relatives' is the wordplay.
'question' becomes 'pump' (pumping is a kind of questioning).
'relatives' becomes 'kin' (kin can mean relatives or family).
'pump'+'kin'='PUMPKIN'
'with' acts as a link.
(Other definitions for pumpkin that I've seen before include "coach would appear at midnight" , "Type of squash" , "Large type of gourd" , "It's a Halloween tradition" , "Orange-yellow fruit" .)