Barker is a bounder
I believe the answer is:
springer
'is a bounder' is the definition.
(I've seen this before)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for springer that I've seen before include "A bounder" , "Game dog" , "Large spaniel with wavy silky coat" , "Breed of spaniel" , "hound" .)