South American a Nauru guy condemned (9)
I believe the answer is:
uruguayan
'south american' is the definition.
(Uruguayan is an example)
'a nauru guy condemned' is the wordplay.
'condemned' indicates anagramming the letters.
'a'+'nauru'+'guy'='anauruguy'
'anauruguy' anagrammed gives 'URUGUAYAN'.
(Other definitions for uruguayan that I've seen before include "From Montevideo, say?" , "Latin!" , "Eg, native of Montevideo" .)