Crossword Genius

What's white and sparkling as teeth? (8)

Ross

I believe the answer is:

champers

I believe this is a double definition.

'what's white and sparkling' is the first definition.
(informal term for champagne)

'teeth?' is the second definition.
(to champ can mean to bite)

'as' acts as a link.

(Other definitions for champers that I've seen before include "Drink casually" , "Kind of sparkling wine (slang)" , "People who eat" , "something sparkling!" , "Bubbly" .)

I've seen this clue in The Sun, The Times and The Telegraph.
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