Possible Clues:

• Having a reddish-orange oxide coating
• Out of practice in game, keep losing ace
• Unusually sturdy daughter dropped out of practice
• Not fully reliable, being out of practice
• Privileged prisoner not initially affected by inactivity
• Stiff with age, privileged prisoner gets time off
• In need of brushing up
• Reddish
• Out of practice but reliable without leader
• At heart true, pen showing signs of age