Crossword Genius

Two chaps are foreign (7)

Ross

I believe the answer is:

russian

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'foreign' is the definition.
Although both the answer and definition are adjectives, I don't see how one could define the other.

'two chaps' is the wordplay.
'two chaps' means two substitutions for 'chap'.
'chap' becomes 'russ' ().
'chap' becomes 'ian' (man's name).
'russ'+'ian'='RUSSIAN'

'are' is the link.

Can you help me to learn more?

(Other definitions for russian that I've seen before include "Slavonic tongue" , "Putin's language" , "Type of doll, dressing, or roulette" , "Native of Moscow, say" , "Countryman" .)

I've seen this clue in The Mirror.
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