Good for Hector! (5)
I believe the answer is:
bully
This clue is a double definition.
'good' is the first definition.
(similar in meaning)
'for hector' is the second definition.
(synonyms)
(Other definitions for bully that I've seen before include "Beef cured or pickled in brine" , "excellent" , "Very good" , "Intimidator" , "Browbeater" .)