Stumped by ‘Teller, Perhaps’? Unravel the Hidden Clue!

Stumped by ‘Teller, Perhaps’? Unravel the Hidden Clue! - RAT
Teller, perhaps

Fortune teller
Bank teller
Storyteller
Teller of secrets
Ticket teller
Teller at a magic show
Teller in a casino
Teller in a shop or store
Teller behind bars (in a prison)

RAT