Kitty entertaining daughter (4)
I believe the answer is:
fund
'kitty' is the definition.
(thesaurus)
'entertaining daughter' is the wordplay.
'entertaining' becomes 'fun' ('fun' can be similar in meaning to 'entertaining').
'daughter' becomes 'd'.
'fun'+'d'='FUND'
(Other definitions for fund that I've seen before include "Give money" , "Reserve of money for future use" , "Stock of money available for particular purpose" , "Cash reserve" , "Provide with money, say project" .)