Crowed that beats do change (7)

I believe the answer is:

boasted

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'crowed' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe they are linked in a way I don't understand?

'beats do change' is the wordplay.
'change' is an anagram indicator.
'beats'+'do'='beatsdo'
'beatsdo' anagrammed gives 'BOASTED'.

'that' is the link.

Can you help me to learn more?

(Other definitions for boasted that I've seen before include "Talked with self-pride" , "Showed off, bragged" , "Bragged, blustered" .)

I've seen this clue in The Mirror.

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