Gumbo vegetable (4)
I believe the answer is:
okra
'gumbo vegetable' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for okra that I've seen before include "vegetable soup ingredient" , "Bhindi in Ind. cookery" , "vegetable dish" , "Ladies' fingers with edible pods" , "Pod eaten in soups, stews etc" .)