Related Clues:

• Implosion material
• Boomsticks?
• Hit for 1-Across
• Blowup source, perhaps
• Quarry compound
• Cause of smithereens, maybe
• Block buster?
• Blaster's stuff
• It blasts
• Palindromic exploder
• The great leveler
• Cause of a big blowup?
• Tunnel-drilling need
• What Wile E. Coyote got from Acme
• Razing stuff