Being as one avers great power results (6,6)

I believe the answer is:

united states

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'being as one avers great power results' is the definition.
I can't judge whether this defines the answer.

'being as one avers' is the wordplay.
'being as one' becomes 'united' (I've seen this before).
'avers' becomes 'states' (I've seen this in another clue).
'united'+'states'='UNITED STATES'

Can you help me to learn more?

(Other definitions for united states that I've seen before include "Country, capital Washington DC" , "National federation" .)

I've seen this clue in The Irish News.

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