Bean or pea, eg (6)
I believe the answer is:
legume
I believe this is a double definition.
'bean' is the first definition.
(I've seen this before)
'pea eg' is the second definition.
(I know that pea is a type of legume)
(Other definitions for legume that I've seen before include "Veg as pea, bean" , "A fruit that bears its seed in pods" , "Glue me (anag) - climbing bean or pea plant" , "Plant that bears its seeds in a pod" , "Pea, bean or lentil?" .)