Is violent and ruins the gears (5)

I believe the answer is:

rages

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'is violent' is the definition.
I can't judge whether this defines the answer.

'ruins the gears' is the wordplay.
'ruins' is an anagram indicator.
'gears' anagrammed gives 'RAGES'.

'and' acts as a link.

Can you help me to learn more?

(Other definitions for rages that I've seen before include "Passions" , "speaks as Hitler!" , "Fits of temper" , "becomes furious" , "States of extreme anger" .)

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

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