Crossword Genius

I brought in nothing in tins for Northern people (9)

Ross

I believe the answer is:

canadians

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'people' is the definition.
(Canadian is an example)

I can't explain the rest of the clue.

Can you help me to learn more?

(Another definition for canadians that I've seen is " Eg, Ottawa natives".)

I've seen this clue in The Independent.
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