Related Clues:

• Hook (up)
• Big truck, for short
• Professional leader?
• Turnpike rumbler
• Precious opening?
• Prefix for final
• Load mover
• Freeway rig
• Interstate rig
• Manipulate, as a match
• Jackknifing victim?
• Formal intro?
• Trailer hitch?
• Consciousness starter?
• Highway rumbler