Related Clues:

• Dark cover
• Factor in determining terminal velocity
• Buzzkill
• Camp clothing?
• __ race
• Don, as clothing
• Burial garment
• Begin to grate
• Pull, caveman style
• Gradual deterioration
• Tucker (out)
• "I haven't a thing to ___!"
• Gradually disappear, with "off"
• Boring situation
• Age, as tires