Harry Basset, perhaps (5)
I believe the answer is:
hound
I believe this clue is a double definition.
'harry' is the first definition.
(thesaurus)
'basset perhaps' is the second definition.
(basset is a kind of hound)
(Other definitions for hound that I've seen before include "Hunting dog; harass" , "Pursue relentlessly" , "unpleasant character" , "Breed of dog used for hunting" , "Persecute; dog" .)