Related Clues:

• Brain's creation
• A finger in the air might connote one
• It begins at conception
• Author's inspiration
• The thought that counts?
• It may be big or bright
• A good one is often carried out
• I dare say, without Ray's suggestion
• Nearly colorless
• Result of ruminating
• Flash, perhaps
• 'No ___' ('Don't ask me')
• Embryonic invention
• Item in a writer's notebook
• Start of a project