Vegetable some reap early (3)
I believe the answer is:
pea
'vegetable' is the definition.
(pea is a type of vegetable)
'some reap early' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'PEA' is hidden within 'reap early'.
(Other definitions for pea that I've seen before include "Annual climbing plant with edible seeds" , "Tiny stone" , "Common vegetable seed from pod" , "Little green vegetable" , "Edible seed from pod" .)