Related Clues:

• Traffic (in)
• It may be worn on a sneaker
• Plumbing or heating
• Part of NAFTA
• Stock market transaction
• Sneaker bottom
• Wheel and deal
• Stair component
• Sneaker-sole surface
• Its gradual loss leads to baldness
• Piece between risers
• Sports headline item
• Locksmithing, e.g.
• Shoe surface
• It gives a tire its grip