Crossword Genius

In their own fields the French are unbeatable (6)

Ross

I believe the answer is:

champs

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(Other definitions for champs that I've seen before include "Heaven in Paris?" , "Title holders" , "Munches noisily like horse at bit" , "frets impatiently" , "Munches noisily like abbreviated winners" .)

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