Cheat Canadian returning to French commune (6)

I believe the answer is:

cognac

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But I can't explain it at all! Could you help me understand?

(Other definitions for cognac that I've seen before include "High quality brandy" , "French brandy region" , "(French district famed for) fine brandy" , "Brandy as for Napoleon (6)." , "Type of brandy" .)

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