Churls (5)
'churls' is the definition.
('boor' can be a synonym of 'churl')
This is the entire clue.
(Other definitions for boors that I've seen before include "They're coarse with bad manners" , "Ill-mannered people, churls" .)
(Other definitions for dogs that I've seen before include "Persistently follows" , "Pursues" , "pets" , "log hearth" , "Shadows" .)