Crossword Genius

The language of the finishing school? (6)

Ross

I believe the answer is:

polish

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'the language' is the definition.
(Polish is an example)

I don't understand how the rest of the clue works.

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(Other definitions for polish that I've seen before include "Beeswax, for example" , "tongue" , "Shine up the nationality" , "taught in finishing school?" , "See 1" .)

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