Lets off the hook (7)

I think it could be either:

Which length description are you looking for?:

exempts

'lets off the hook' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for exempts that I've seen before include "Excuses" , "Frees from liability" , "Lets off" , "Frees from obligation, say jury service" , "Grants immunity to" .)

I've seen this clue in the Universal.

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