Says it's America (6)
I believe the answer is:
states
This clue is a double definition.
'says' is the first definition.
('state' can be a synonym of 'say')
'america' is the second definition.
(the United States)
'it's' is the link.
(Other definitions for states that I've seen before include "Administrative units in America" , "Governments" , "They're united in America" , "Countries with a central government" , "Asserts" .)