Related Clues:

• Sen. Robert Byrd, for one
• Cleric's address, for short
• Fire up a motor
• Make go "vroom"
• Accelerate, for short
• M.L.K. title
• M.L.K. Jr., e.g.
• Clerical address, for short
• Hit the accelerator
• Big talker
• Gun on the street?
• Race   
• Minister, slangily
• Crank up
• Speech maker