Related Clues:

• Controller, of telephone say
• Director or controlller of machinery
• Controller of a machine
• Controller, of a machine say
• Perhaps it's the surgeon that starts with work in the theatre
• Person who's a zero?
• Maybe Carmen tore off the last for a numbers person?
• Machinist works to rule at first
• Perhaps it's Norma Hill who answers the call
• Surgeon who will do you if he can
• Musical show high spot for a worker
• Worker from the outskirts of Prague interrupting speaker
• Tosca, say, to Romeo, who's working the machine
• Worker with poor rate when working?
• Machinist's work rate poor