Edible bulbs (6)
I believe the answer is:
onions
'edible bulbs' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for onions that I've seen before include "nuts" , "Veg" , "If you knew your vegetables, you'd be well up" , "Such may make one weep" , "Pungent vegetables" .)