Related Clues:
- Propeller; fixing pin
- Hack's salary
- Archimedes' invention succeeded - expressed triumph
- Closer, yet not moving
- Prison officer, or con
- Second team may need a driver
- Turned gas on with ... this?
- Those working on a ship behind small propeller
- Con — or one's gaoler?
- Fastening
- Threaded pin
- Salary of Archimedes for inventing one?
- Threaded fixer
- Prison officer sometimes needing a good turn from a driver?
- Spirally threaded tack