Riches not about temptation? (4)
I believe the answer is:
lure
'temptation?' is the definition.
(lure is a kind of temptation)
'riches not about' is the wordplay.
'riches' becomes 'lucre' (I've seen this in another clue).
'not' suggests deleting specific letters.
'about' becomes 'c' (circa).
'lucre' with 'c' taken away is 'LURE'.
(Other definitions for lure that I've seen before include "Tempt with some kind of reward" , "'Decoy, bait (4)'" , "'Entice, tempt (4)'" , "Attraction" , "Type of bait" .)