Related Clues:

• Cause of an explosion
• What's on your mind
• "Into the West" airer
• It can come to a head
• Demolition ball alternative
• Start of a brilliant scheme
• Problem solver, perhaps
• NBA All-Star Game airer
• Cortex product
• Blown-up letters?
• It's dynamite stuff
• "What's the big __?"
• It makes molehills out of mts.
• It's dynamite
• Reason to shout 'Eureka!'