Related Clues:

• Fancy orthopaedic back cushions
• Something that might pop into your head
• Vital step in creating something
• A lightbulb might signify one
• Internal flash
• Image of a brain?
• Odd bits in middle, say, discarded -- fancy!
• 'I had no __!'
• Thing many people say they thought of first
• Result of a successful brainstorm
• Lead from Adelaide in theory
• "Whose __ was that?"
• Reason to say "I've got it!"
• Doctrine kids read endlessly
• "Good thinking!" thought