Perón of Argentina (3)
I believe the answer is:
eva
'peron of argentina' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eva that I've seen before include "Braun or Peron, say" , "- - , nee Braun" , "-- Cassidy, singer, 1963-96" , "- Peron, Evita" , "Woman" .)