After manoeuvring, agree talks that are between Canada and the US (5,5)

I believe the answer is:

great lakes

'that are between canada and the us' is the definition.
(the Great Lakes are between Canada and the US)

'after manoeuvring agree talks' is the wordplay.
'after manoeuvring' is an anagram indicator.
'agree'+'talks'='agreetalks'
'agreetalks' anagrammed gives 'GREAT LAKES'.

(Another definition for great lakes that I've seen is " Erie, Michigan, Huron etc,".)

I've seen this clue in The Times.

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