Related Clues:

• Light bulb, to Edison and comics
• Aftermath of a brainstorm
• Big or bright thing
• Inhalation
• Display shock
• Brilliant thought
• Object of a brilliant thought
• The embryo of an invention
• [You don't mean …!]
• Trial balloon, e.g.
• Indicate shock
• ''Hey, what's the big ___?''
• Gray matter creation
• Patent basis
• Content of cognition