Garlic bulb (5)
I believe the answer is:
clove
'garlic bulb' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for clove that I've seen before include "Split; spice" , "Cut" , "A spice; a garlic bulb" , "Payment for hostage" , "A small bulb as of garlic" .)