Anfield footballer Sadio's hair (4)
I believe the answer is:
mane
'hair' is the definition.
(mane is a kind of hair)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for mane that I've seen before include "Lion or horse's 10 Across" , "Long flowing hair" , "Name for hair on horse's neck" , "Neck hair of an animal" , "Animal neck-hair" .)