Crossword Genius

Bête noire; something, or one, that causes destruction (4)

Ross

I believe the answer is:

bane

(Other definitions for bane that I've seen before include "Blight" , "Affliction, cause of distress" , "A fatal poison" , "Cause of trouble or anxiety" , "Cause of trouble or worry, like bean" .)

I've seen this clue in The Guardian.
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