Most of money at home -- nothing for this establishment! (6)
I believe the answer is:
casino
'this establishment' is the definition.
(casino is a kind of establishment)
'most of money at home nothing' is the wordplay.
'most of' means to remove the last letter.
'money' becomes 'c'.
'home' becomes 'sin' (I can't justify this - if you can you should give a lot more credence to this answer).
'nothing' becomes 'o' (looks like zero - 0).
'c'+'at'='cat'
'cat' with its final letter removed is 'ca'.
'ca'+'sin'+'o'='CASINO'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for casino that I've seen before include "Gaming place" , "Where one may gamble" , "Gambling-club" , "gambling organisation" , "Gambling emporium" .)