Crunchy root vegetables (8)
I believe the answer is:
radishes
'crunchy root vegetables' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for radishes that I've seen before include "Pungent fleshy edible roots" , "Salad vegetables" , "Pungent roots for salads" , "salad plants" , "Content of salad bowl" .)