Related Clues:

• Improve, as skills
• Use a whetstone
• Perfect, as a skill
• Ground, in a way
• Ready for cutting
• Sharpen skills
• Practice, as skills
• Sharpen, as a blade
• Use a strop
• It'll give you an edge
• It'll give you the edge
• Improve, as one's skills
• Perfect, as one's skills
• Sharpened to a fine edge
• Sharpen, as on a whetstone