Got an alternative nation (5)
I believe the answer is:
tonga
'nation' is the definition.
(Tonga is an example)
'got an alternative' is the wordplay.
'alternative' indicates anagramming the letters (an alternative ordering of the letters).
'got'+'an'='gotan'
'gotan' with letters rearranged gives 'TONGA'.
(Other definitions for tonga that I've seen before include "two-wheeler" , "Polynesian monarchy, member of the Commonwealth" , "Pacific island state" , "South Pacific kingdom, capital Nuku'alofa" , "Pacific Ocean kingdom" .)