Related Clues:

• Grind, maybe
• Razor sharpener
• Improve, in a way
• Pique
• Sharpen, as a knife
• Refine
• Barbershop band
• Sharpen, as one's skills
• Stimulate, as the appetite
• Get an edge
• Cutting edge creator
• Barber chair attachment
• Use a whetstone on
• Sharpen by grinding
• Give an edge