Related Clues:

• 'Sure, why not?!'
• "Wow, I never thought of that before!"
• ''That's a terrific suggestion!''
• Brainstorming result, perhaps
• 'That just might work!'
• It's thought to be bright
• It's thought not to be bad
• Wheeze for this
• It's thought to be a grand one
• "I like your invention!"
• "I like it!"
• "That's using your head!"
• 'Nice thinking!'
• "That could work!"
• 'Why didn't I think of that?!'