Related Clues:

• It can make molehills out of mountains
• Blasting letters
• Stick with a kick
• Vision
• The light bulb, to Edison
• "The very ___!"
• Flash of brilliance
• Postulation
• Creative thought
• It may be seminal
• Bygone deliverer
• Cause of many a blowup
• Thesis basis
• Fanciful notion
• Brainstorming session result