Related Clues:

• Sound surly
• Show one's teeth
• Shoelace tangle
• Tie it and you're hitched
• Act surly
• Small sandpiper
• Ball of yarn, e.g.
• Feature of pine paneling
• Knitter's purchase
• Shoelace snarl
• Angry dog's response
• Gordius' puzzler
• Rope feature
• Hank of yarn
• Muscular problem