Intimidate Trojan hero (6)
I believe the answer is:
hector
This clue is a double definition.
'intimidate' is the first definition.
(I know that hector is a more specific form of the action intimidate)
'trojan hero' is the second definition.
(mythological figure)
(Other definitions for hector that I've seen before include "(To) bully (someone); Trojan warrior (Iliad)" , "'Browbeat, ballyrag (6)'" , "King's son" , "Annoy like a Trojan hero" , "Browbeat, boss around" .)