Related Clues:

• Suspicion
• Bit of inspiration
• Light bulb, to Edison and comics
• Aftermath of a brainstorm
• Big or bright thing
• Brilliant thought
• Object of a brilliant thought
• The embryo of an invention
• Trial balloon, e.g.
• ''Hey, what's the big ___?''
• Gray matter creation
• Patent basis
• Content of cognition
• ''What's the bright ___?''
• Asset for an entrepreneur