What contributes to millionaire's ultimate pay-off? (6)

I believe the answer is:

result

I'm a little stuck... Click here to teach me more about this clue!

'what contributes' is the definition.
I can't tell whether this defines the answer.

'millionaire's ultimate pay-off?' is the wordplay.
'RESULT' is hidden within the letters.
However, I'm unsure how this is indicated.

'to' is the link.

Can you help me to learn more?

(Other definitions for result that I've seen before include "'Outcome, consequence (6)'" , "Final score" , "End - issue" , "Verdict" , "Ulster (anag) - outcome" .)

I've seen this clue in The Independent.

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