Charm a chap with temptation (6)
I believe the answer is:
allure
'charm' is the definition.
(I've seen this before)
'a chap with temptation' is the wordplay.
'a chap' becomes 'Al' (man's name).
'with' means one lot of letters go next to another.
'temptation' becomes 'lure' (lure is a kind of temptation).
'al'+'lure'='ALLURE'
(Other definitions for allure that I've seen before include "Enticement, attraction" , "Power to attract by personal charm" , "Glamorous appeal" , "There's glamour" , "Seduction" .)