Related Clues:
- Coloring on nails
- With 58-Across, area with severely declining industry
- Wheat disease
- Visible sign of oxidation
- Jalopy corrosion
- Right about America’s corrosive influence
- Coating formed by oxidation
- Sign of age on a car
- Orange-brown hue
- Metallic corrosion
- Sign of age, maybe
- Buildup on old bikes
- Reddish-brown sides of rump roast
- Car body problem
- Coating on old iron