Eat long misshapen fruit (7)
I believe the answer is:
tangelo
'fruit' is the definition.
(tangelo is a kind of fruit)
'eat long misshapen' is the wordplay.
'misshapen' is an anagram indicator.
'eat'+'long'='eatlong'
'eatlong' with letters rearranged gives 'TANGELO'.
(Other definitions for tangelo that I've seen before include "Hybrid fruit; eat long (anag.)" , "Citrus hybrid - goal net (anag)" , "one cross, sour" , "sharp cross" , "fruitful merger?" .)