Related Clues:

• Sign of aging
• Color close to copper brown
• Autumn color
• What stainless steel doesn't do
• Corrode
• Reddish shade
• Lack of practice, metaphorically
• Enemy of your car's chrome bumper
• Pipe problem
• Fall shade
• Oxidize
• Age, in a way
• Autumnal hue
• Sign of inactivity
• Iron oxide