Cats from pit scared by a group of ferocious animals (5)
I believe the answer is:
pride
'cats' is the definition.
(I have seen 'big cats' mean 'pride' so perhaps 'cats' could also mean 'pride')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for pride that I've seen before include "They say it comes before a fall" , "big cats" , "Novel by Jane Austen" , "Company of lions" , "Leonine family" .)