Possible Clues:

• Stopped king interrupting an investigation
• Like objects in a Newtonian law
• Sleeping peacefully - maybe dead
• Lying down in big crowd at Lord's? Right to take time out
• Still right to enter a challenge
• Theatre stage housing not working
• Like an object in Newton's Law of Inertia
• Still a quiz includes references, for a start
• Idle type treats sick
• Dead (or just sleeping?)