Aptly named fruit (4)
I believe the answer is:
ugli
'aptly named fruit' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ugli that I've seen before include "Trademark name for a hybrid citrus fruit" , "Hybrid fruit, sounds nasty" , "Jamaican form of 6" , "(Repulsive-looking?) fruit" , "West Indian citrus fruit" .)