Friend of Fidel (3)
I believe the answer is:
che
'friend of fidel' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for che that I've seen before include "Fighter" , "First person" , "-- Guevara, revolutionary" , "- Guevara, guerrilla" , "- Guevara, Marxist" .)