Garden veggie (3)
'garden veggie' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pea that I've seen before include "Leguminous seed" , "Cause of a princess's insomnia?" , "Spherical vegetable" , "Pulse vegetable" , "Small vegetable" .)
(Other definitions for bean that I've seen before include "Plant with seed in pod" , "Nut" , "Pulse" , "Seed of a leguminous plant" , "Vegetable; head" .)