Crossword Genius

One match should last him a lifetime (10)

Ross

I believe the answer is:

monogamist

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This clue could be a double definition.

'one match' is the first definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see a link between them that I can't see?

'should last him a lifetime' is the second definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

Can you help me to learn more?

(Other definitions for monogamist that I've seen before include "Reliable partner" , "Person with a single mate" , "Advocate of having only one spouse at a time" .)

I've seen this clue in The Globe and Mail.
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