Related Clues:

• Rubber Duck, for one
• One with a handle
• Speaker on the road
• Handle holder?
• Driver who talks
• Many a trucker
• Radio-active driver
• One behind the wheel with a handle
• Semi-skilled talker?
• One who's driving on air?
• Good buddy
• Smokey spotter
• Fellow with a handle
• Trucker with a handle
• '10-4' speaker