Green’s Dictionary of Slang

fare n.

a male or female prostitute’s client.

1959

F. Norman in Encounter n.d. in Norman’s London (1969) 64: You’re very bold, darling, but it won’t do you any good to camp around here. Why don’t you go and get yourself a fare, and leave us alone.

In phrases

pick fares (v.)

(W.I., Bdos) to work as a prostitute.

1996

Allsopp Dict. Carib. Eng. Usage.