Related Clues:

• They keep things rolling
• Precious Chinese carvings
• Needs a rest
• Belted wares
• Green gemstones
• Some swing seats
• They might squeal
• Dragster's slicks
• Is ready to rest
• Becomes weary
• The wheels on the bus, e.g.
• Saturn's four
• Rim attachments
• Green stones
• Some spares at the chop shop