Wrinkly-skinned fruit (4)
I believe the answer is:
ugli
'wrinkly-skinned fruit' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ugli that I've seen before include "Sweet variety of tangelo from Jamaica" , "Tangerine-grapefruit hybrid" , "Cross between Seville orange, grapefruit and tangerine" , "Unappealing-sounding fruit?" , "Large juicy fruit with thick wrinkled skin" .)