Argentinian dictator (5)
I believe the answer is:
peron
'argentinian dictator' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for peron that I've seen before include "Former Argentine leader" , "Juan, maybe" , "Former Argentinian leader" , "Argentinian dictator, 1946-55" , "Prone to being an Argentine president" .)