Refusal to include land (1,1,1)
'land' is the definition.
'refusal to include' is the wordplay.
'to include' indicates the answer is hidden within the clue.
'U S A' can be found hidden inside 'refusal'.
'land' is the definition.
(U.S.A. is an example)
'refusal to include' is the wordplay.
'to include' indicates a hidden word.
'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" .)