Related Clues:

• Threaded pin
• Salary of Archimedes for inventing one?
• Trophy; drinking vessel
• Threaded fixer
• Prison officer sometimes needing a good turn from a driver?
• Spirally threaded tack
• Stanley, for one
• Flathead, for one
• A prison officer's salary, commonly
• Mackay or Barrowclough's common salary?
• Warder (sl.)
• Prison officer (sl.)
• A means of fixing salary commonly
• One whom prisoners might wish to cheat
• A means of fixing wages