Terrier from County Down? (5,4)
I believe the answer is:
kerry blue
'terrier' is the definition.
(Kerry blue terrier is an example)
'county down?' is the wordplay.
'county' becomes 'kerry' (I've seen this before).
'down?' becomes 'blue' (I've seen this before).
'kerry'+'blue'='KERRY BLUE'
'from' is the link.
(Other definitions for kerry blue that I've seen before include "Terrier" , "dog!" .)