Temptation -- eating last of garlic bread (5)
I believe the answer is:
lucre
'bread' is the definition.
(lucre can mean money - bread is slang for money)
'temptation eating last of garlic' is the wordplay.
'temptation' becomes 'lure' (lure is a kind of temptation).
'eating' is an insertion indicator.
'last of' says to take the final letters.
The final letter of 'garlic' is 'c'.
'lure' placed around 'c' is 'LUCRE'.
(Other definitions for lucre that I've seen before include "Criminal gains maybe" , "Ulcer (anag)" , "Bread, dough, lolly" , "ill-gotten gain" , "Cash" .)