The term 'Original Goldfinger' refers to the 1964 James Bond film, 'Goldfinger'. The film stars Sean Connery as the titular character, and is widely considered to be one of the best Bond films ever made. The crossword solution for this term is MIDAS, which is a reference to the Greek mythological figure of the same name. In the myth, King Midas was granted the power to turn anything he touched into gold. This is a fitting reference to the film, as the villain's plan is to rob Fort Knox of its gold reserves.