Puggle or schnoodle (3)
I believe the answer is:
dog
'puggle or schnoodle' is the definition.
(I know that Puggle is a dog crossbreed)
This is all the clue.
(Other definitions for dog that I've seen before include "Sort of collar, fight, days" , "Follow closely; animal" , "A pet; its life prov. wretched" , "Follow - canine" , "Domesticated canine" .)