Related Clues:

• Much more than mere
• Very wise
• Smart as a whip
• Extreme, as pain
• Shrewdly astute
• Vivid
• Not quite right?
• Very perceptive
• Sharp, as wits
• Less than right?
• "Neato!"
• Well sharpened
• Peachy ___
• Piercing cry
• Sharp-edged