Told to find a better way, perhaps, to display vegetable (8)
I believe the answer is:
beetroot
'vegetable' is the definition.
(beetroot is a kind of vegetable)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for beetroot that I've seen before include "vegetable's produced" , "plant" , "salad ingredient" , "Food" , "Vegetable cooked or used in salads and pickles" .)