Snowball in "Animal Farm" (3)
I believe the answer is:
pig
'snowball in animal farm' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pig that I've seen before include "Sow, perhaps" , "Difficult task" , "Boar or sow" , "Eg, sow" , "Hog" .)