Related Clues:

• Speak from the rostrum
• Deliver, as venom
• Make like a geyser
• Give a keynote, say
• Go campaigning, in part
• Employ a silver tongue
• Deliver a valedictory
• Give a keynote
• Give a stemwinder
• Give a lecture
• Disgorge, as lava
• Mount the soapbox
• Speak from the soapbox
• Deliver an address
• Expound