Related Clues:

• Cause for stage fright
• Go up alone
• 55-Across, e.g.
• Man from U.N.C.L.E.
• Han of "Star Wars"
• Something to hum
• Unaided
• Unaccom-panied
• Ditty
• Sans staff
• Lead guitarist's moment
• Sans assistance
• Emulate Lucky Lindy
• Spiritual, e.g.
• iTunes download