Someone new on the scene earned money, right? (7)
I believe the answer is:
incomer
'someone new on the scene' is the definition.
(someone coming in or arriving)
'earned money right?' is the wordplay.
'earned money' becomes 'income' (someone's earnings).
'right?' becomes 'R' (common abbreviation).
'income'+'r'='INCOMER'
(Other definitions for incomer that I've seen before include "New member of a community" , "No native" , "New arrival in an area" , "Recent arrival" , "Perhaps asylum seeker" .)