Related Clues:

• Dressing-down
• White-collar worker, for short?
• Use a soapbox
• Talk pompously
• Emulate Demosthenes
• Gun an engine
• Spout rhetoric
• Stern talking to
• Take the stump
• --- up (accelerate)
• Captivate the crowd, maybe
• Emulate Aesop
• Accelerate sharply
• Address an audience
• Make the keynote address