Related Clues:

• Suffix with bear or bull
• Formal intro?
• Trailer hitch?
• Consciousness starter?
• Highway rumbler
• I-80 hauler
• Circle's beginning?
• Conductor's beginning?
• Weigh station waiter
• Sheep tail?
• Huge truck
• Suffix for bull
• "Circle" or "final" start
• Small home
• It's often used for a long haul