Dog’s leash may hurt (8)
I believe the answer is:
sealyham
'dog's' is the definition.
(Sealyham is an example)
'leash may hurt' is the wordplay.
'hurt' indicates anagramming the letters.
'leash'+'may'='leashmay'
'leashmay' anagrammed gives 'SEALYHAM'.
(Other definitions for sealyham that I've seen before include "A shy male (anag) - dog" , "Short-legged terrier" , "5 [MANS BEST FRIEND]" , "Dog that rhymes with ..." , "Hay meals (anag) - kind of terrier" .)