Bird taking vegetable seed (8)
I believe the answer is:
chickpea
'seed' is the definition.
(I know that chickpea is a type of bean)
'bird taking vegetable' is the wordplay.
'bird' becomes 'chick' (chick is a kind of bird).
'taking' is a charade indicator (letters next to each other).
'vegetable' becomes 'pea' (pea is a type of vegetable).
'chick'+'pea'='CHICKPEA'
(Other definitions for chickpea that I've seen before include "Round yellowish seed, eaten as a pulse" , "Edible yellowish seed, also called garbanzo" , "Bushy leguminous plant" , "A pulse, garbanzo" , "Hummus pulse" .)