Attendant for better publisher stops person shouting (8)
I believe the answer is:
croupier
'attendant for better' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'publisher stops person shouting' is the wordplay.
'publisher' becomes 'OUP' (abbreviation for Oxford University Press).
'stops' means one lot of letters goes inside another (stopping can mean blocking a gap).
'person shouting' becomes 'crier' (I am not sure about this - if you are sure you should believe this answer much more).
'oup' inserted within 'crier' is 'CROUPIER'.
Can you help me to learn more?
(Other definitions for croupier that I've seen before include "rakes in the money" , "Betting employee" , "Casino dealer" , "Casino attendant" , "Gaming table attendant" .)