Area occupied by some flustered foreigners (6)

I believe the answer is:

region

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'area' is the definition.
(I know that area can be written as region)

I can't explain the remainder of the clue.

(Other definitions for region that I've seen before include "Part of a country" , "Ignore (anag) -- expanse of land" , "Area of country" , "Tract or area" , "Area,territory" .)

I've seen this clue in the Evening Standard.

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