Bans untidy beards (6)

I believe the answer is:

debars

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'bans' is the definition.
The answer and definition can be both to do with communicating as well as being verbs in their -s form.
Maybe there's an association between them I don't understand?

'untidy beards' is the wordplay.
'untidy' is an anagram indicator.
'beards' is an anagram of 'DEBARS'.

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

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