Choose an entrance for dictator and Spanish provocateur (7)
I believe the answer is:
picador
'spanish provocateur' is the definition.
(someone who provokes a bull in bull-fighting)
I cannot understand how the remainder of the clue works.
(Other definitions for picador that I've seen before include "The bullfighter who goads the animal" , "Animal killer" , "fighter with lance" , "Lancer" , "Horseman in bullring" .)