Related Clues:

• Birth of a notion?
• Brain product
• Glimmering
• Think tank nugget
• Embryo of an invention
• It's in your head
• Clever thought
• ''Civil Disobedience,'' e.g.
• Mind matter
• Creative spark
• Just a thought
• Endeavor
• Piece of Bacon?
• Recurring melody
• Plan of action