Meat's dropped on dog (4)
I believe the answer is:
mutt
'dog' is the definition.
(I know that mutt is a type of dog)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for mutt that I've seen before include "Chump" , "far from best in show?" , "Dog of mixed breed" , "Setter perhaps" , "Mongrel - fool" .)