Temptation to smuggle cocaine for money (5)
I believe the answer is:
lucre
'for money' is the definition.
(lucre is a kind of money)
'temptation to smuggle cocaine' is the wordplay.
'temptation' becomes 'lure' (lure is a kind of temptation).
'to smuggle' is an insertion indicator (smuggle can mean to secretly carry).
'cocaine' becomes 'C' (drugs abbreviation).
'lure' placed around 'c' is 'LUCRE'.
(Other definitions for lucre that I've seen before include "Bread, dough, lolly" , "Scornful word for money that may be 1 Across" , "tin" , "Ill-gotten riches" , "Wealth - cruel (anag)" .)