Tangelo variety (4)
I believe the answer is:
ugli
'tangelo variety' 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 "Citrus fruit cross (which sounds offensive!)" , "Orange-grapefruit cross" , "Plain-sounding fruit" , "Tropical fruit" , "Trademarked hybrid citrus fruit" .)