Related Clues:

• Pirelli product
• It can become bald
• One of a car quartet
• Struggle to finish
• It keeps on rolling
• One of a semi's eighteen
• Tire out
• Drain the energy from
• Bicycle part
• Start to sag
• Emblem
• Ersatz swing
• National symbol
• Driving-range target
• Part of a makeshift swing, perhaps