Depot at Ooty stocks vegetable (6)
I believe the answer is:
potato
'vegetable' is the definition.
(potato is a kind of vegetable)
'depot at ooty stocks' is the wordplay.
'stocks' says the answer is hidden in the clue.
'POTATO' is hidden in the letters of 'depot at ooty'.
(Other definitions for potato that I've seen before include "The vegetable is just too pat" , "Relative of nightshade" , "A plant; hole in sock (colloq.)" , "Starchy tuber" , "Root crop" .)