Nobody we know (8)

I believe the answer is:

stranger

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'nobody' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for stranger that I've seen before include "Less familiar" , "The unknown one is more unusual" , "unfamiliar figure" , "Person one is not acquainted with" , "Outsider" .)

I've seen this clue in The Irish Independent, The Globe and Mail and The Irish News.

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