Person who informs cashier? (6)
I believe the answer is:
teller
This could be a double definition.
'person who informs' is the first definition.
'teller' can be an answer for 'person' (teller is a kind of person). I'm not sure about the rest of the definition.
'cashier?' is the second definition.
(I know that bank clerk can be written as teller)
Can you help me to learn more?
(Other definitions for teller that I've seen before include "one who counts" , "Cashier - vote counter - narrator" , "who worked on the hydrogen bomb" , "One introducing relation" , "Bank official or reporter" .)