Relative brings us into money (6)
I believe the answer is:
cousin
'relative' is the definition.
(cousin is a kind of relative)
'us into money' is the wordplay.
'into' indicates putting letters inside.
'money' becomes 'coin' (I've seen this before).
'us' placed within 'coin' is 'COUSIN'.
'brings' acts as a link.
(Other definitions for cousin that I've seen before include "US icon is an odd relative" , "Address used among sovereigns" , "An aunt's or uncle's child" , "Strange US icon is a relative" , "Close relative" .)