Garlic segment (5)
I believe the answer is:
clove
'garlic segment' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for clove that I've seen before include "Spicy bud - section of garlic" , "Aromatic bud" , "Pungent spice" , "A small bulb as of garlic" , "Cut" .)