Feline in pool? (5)
I believe the answer is:
kitty
I believe this clue is a double definition.
'feline' is the first definition.
(kitty is a kind of feline)
'pool?' is the second definition.
(both can mean a shared fund)
'in' is the link.
(Other definitions for kitty that I've seen before include "Girl's name -- pooled money" , "Pool of money - how Anne Frank addressed her diary" , "Collection of money" , "Communal fund" , "Tom's mate" .)