Pride of lions (4)
I believe the answer is:
mane
'pride of lions' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mane that I've seen before include "Neck hair of an animal" , "Animal neck-hair" , "Lion or horse's 10 Across" , "Hair (of lion)" , "Animal's neck hair" .)