Gentleman I'll see out (6)

I believe the answer is:

leslie

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'gentleman' is the definition.
Both the definition and answer are singular nouns.
Perhaps there's a link between them I don't understand?

'i'll see out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'ill'+'see'='illsee'
'illsee' with letters rearranged gives 'LESLIE'.

Can you help me to learn more?

(Other definitions for leslie that I've seen before include "- Howard, British actor (Gone with the Wind)" , "I'll see (anag) - boy's name" , "Long-running dispute" .)

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

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