Mink's coat (3)
I believe the answer is:
fur
'mink's coat' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for fur that I've seen before include "Outer skin of animal with hair attached" , "Eg, chinchilla" , "Animal pelt" , "Coating formed on tongue of sick person" , "Eg, sable or mink" .)