Related Clues:

• Aid in gaining an edge
• Stimulate or excite
• The artist is back, and it's no use to wake him up
• Might this awaken what is so sour in George Russell?
• To get the artist back to life, give him 22 across
• Sound of strife is enough to make one cross
• Wake the artist up in Yorkshire
• Get the artist back up to 22 across
• Sounds as if a loud sound is what'll wake you up
• Can a broken oar be any use to one or awake any interest?
• Apply to an emery wheel
• Work on, as one's skills
• You might rub a knife across it
• Perfect, perhaps
• Make sharp