Money's invested in those who produce furnaces (9)

'invested in those who produce furnaces' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'money's' is the wordplay.
I cannot really see how this works, but
'money' could be 'm' (abbreviation used in economics) and 'm' is found in the answer.
The remaining letters 'creators' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?