Sponsor after money for metal worker (12)
I believe the answer is:
brassfounder
'sponsor after money' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'metal worker' is the wordplay.
I cannot really understand how this works, but
'metal' could be 'brass' (brass is a kind of metal) and 'brass' is present in the answer.
'worker' could be 'founder' (founder is a kind of worker) and 'founder' is located in the answer.
No letters remain.
This explanation may well be incorrect...
'for' is the link.
Can you help me to learn more?
(Another definition for brassfounder that I've seen is " One casting".)