The whole animal (3)
I believe the answer is:
hog
This clue could be a double definition.
'the whole' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'animal' is the second definition.
(hog is a kind of animal)
Can you help me to learn more?
(Other definitions for hog that I've seen before include "Pig, who holds the road perhaps" , "Take more than one's share" , "source of meat" , "A male pig or a greedy person" , "Monopolise" .)