State of pure disorder (4)
I believe the answer is:
peru
'state' is the definition.
(I know that Peru is South American country)
'pure disorder' is the wordplay.
'disorder' indicates anagramming the letters (a disordered version of the letters).
'pure' anagrammed gives 'PERU'.
'of' acts as a link.
(Other definitions for peru that I've seen before include "Paddington Bear's country of birth" , "Machu Picchu country" , "South American country" , "Nazca, Cuzco here" , "Mario Vargas Llosa's native land" .)