Cheer to a matador (3)
I believe the answer is:
ole
'cheer to a matador' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ole that I've seen before include "(In Spain) bravo!" , "Hooray for the Spaniards" , "Spanish hurrah!" , "Madrid exclamation" , "Hurray in Spain" .)