Refusal to include land (3)

I think it could be either:

Which length description are you looking for?:

1,1,1

usa

'land' is the definition.
(I know that U.S.A. is a great power)

'refusal to include' is the wordplay.
'to include' says the answer is hidden in the clue.
'USA' can be found hidden inside 'refusal'.

(Other definitions for usa that I've seen before include "A great national federation" , "United States" , "Trumpland?" , "Union" , "Land of the Free and the Home of the Brave" .)

I've seen this clue in The Mirror.

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