An act that violates an act (5)

I believe the answer is:

crime

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'act' is the definition.
(I know that crime is a type of evildoing)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for crime that I've seen before include "Murder, perhaps" , "Punishable deed" , "Social problem" , "Dangerous driving perhaps" , "Unlawful act" .)

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

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