Related Clues:

• Anguish
• Become vexed
• Guitar player's guide
• Agonize (over)
• Be anxious
• Ukulele feature
• Chafe
• Raised area on a neck?
• Get all worked up
• Fingerboard part
• Guitar guide
• Worry (about)
• Sweat it
• Banjo ridge
• Pace up and down