Bettered, as skills, 5 letters
Gave a knife new life, 5 letters
Improved, as skills, 5 letters
Made more effective, 5 letters
Perfected as a skill, 5 letters
Perfected one's skills, 5 letters
Perfected, as a craft, 5 letters
Perfected, as skills, 5 letters
Prepared for a shave, 5 letters
Put to the grindstone, 5 letters
Sharpened to a fine edge, 5 letters
Sharpened, as a knife, 5 letters