Round green veggie (3)
I believe the answer is:
pea
'round green veggie' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pea that I've seen before include "Ape this plant badly" , "Common vegetable seed from pod" , "Annual climbing plant with edible seeds" , "Legume" , "Leguminous plant" .)