Related Clues:

• High roller?
• Game before the finals
• Conductor's starter?
• Long hauler
• Trucker's wheels
• Trucker's transport
• Round of four
• Teamster's rig
• Final preceder
• Rest area sight, often
• They're weighed at weigh stations
• Freight mover
• Circular opening
• Circular opening?
• Part of a convoy