Figure it's a bald patch in the animal's coat (4)
I believe the answer is:
four
'figure' is the definition.
(I've seen this before)
'a bald patch in the animal's coat' is the wordplay.
'a bald patch' becomes 'o' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'the animal's coat' becomes 'fur' (I've seen this before).
'o' inserted within 'fur' is 'FOUR'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for four that I've seen before include "Number of players in a doubles game" , "An even number" , "Boundary hit (cricket)" , "10 cleared of misuse of fortune" , "Figure" .)