Crossword Genius

Snake's tooth (4)

Ross

I believe the answer is:

fang

(Other definitions for fang that I've seen before include "Large pointed tooth" , "Wolf's tooth" , "Venomous tooth" , "Venom-tooth" , "Eg, wolf or snake's tooth" .)

I've seen this clue in the Penny Press, The Star Tribune, The Telegraph and the Newsday.
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