Related Clues:

• Go off volcanically
• Seethe, seeing barrel lost in bungling attempt
• At first, Etna’s rumbling, under pressure to — this?
• Hit the roof -- stop when you do that!
• Guided tours initially cancelled — flip!
• Simmer in anger
• Become active in English sport, joining gym
• Bit of toxic smoke
• Blow one’s top
• First of teeth, perfect, coming up, do this?
• Explode in rage
• Understand about daughter making one grow furious
• Blow off lots of steam?
• Blow your top
• Exhaust pipe vapor