Pioneer surrenders ring to one supplying capital (6)

I believe the answer is:

funder

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'pioneer surrenders ring' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'one supplying capital' is the wordplay.
I cannot really see how this works, but
'one' could be 'un' (northern English dialect form of 'one') and 'un' is found within the answer.
This may be the basis of the clue (or it may be nonsense).

'to' is the link.

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I've seen this clue in The Guardian.

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