Foreign flag bearer (4)

I believe the answer is:

pole

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'flag bearer' is the definition.
(I've seen this in another clue)

I can't explain the rest of the clue.

(Other definitions for pole that I've seen before include "Limit" , "possibly exerting a powerful attraction?" , "Heavenly body indicating north" , "One of two opposites" , "North or South?" .)

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

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