Does my arrangement include a dog? (7)
I believe the answer is:
samoyed
'dog?' is the definition.
(Samoyed is an example)
'does my arrangement include a' is the wordplay.
'arrangement' indicates an anagram.
'include' indicates putting letters inside.
'does'+'my'='doesmy'
'doesmy' is an anagram of 'smoyed'.
'smoyed' placed around 'a' is 'SAMOYED'.
(Other definitions for samoyed that I've seen before include "one barking" , "not setter!" , "[HOUND] ?" , "Sled dog" , "Dog - someday (anag)" .)