Related Clues:

• Emulate Vesuvius
• Show one's rage
• Become 5-Down
• Crazy talk
• Rush furiously, as a river
• Crosswords in the 1920s, e.g.
• Burn in a big way
• Make like Mount St. Helens
• Act like a volcano
• Speak agitatedly
• Give vent to anger
• Boiling state
• Wild harangue
• Screed
• Spread uncontrolled