Dome, say, confused dog (7)
I believe the answer is:
samoyed
'dog' is the definition.
(Samoyed is an example)
'dome say confused' is the wordplay.
'confused' indicates anagramming the letters.
'dome'+'say'='domesay'
'domesay' with letters rearranged gives 'SAMOYED'.
(Other definitions for samoyed that I've seen before include "Sled dog" , "Dog similar to chow" , "Some day (anag) - dog (from Siberia?)" , "one barking" , "Breed of white dog from Siberia - May's ode (anag)" .)