Give authority to break silence (7)

I believe the answer is:

license

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'give authority' is the definition.
'license' can be an answer for 'authority' (I've seen this in another clue). I am not sure about the 'give' bit.

'break silence' is the wordplay.
'break' indicates anagramming the letters.
'silence' is an anagram of 'LICENSE'.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for license that I've seen before include "Authorise officially" , "Silence (anag.)" , "Silence about permission to sell" , "Allow" , "Grant formal permission (to)" .)

I've seen this clue in The Irish Independent.

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