Related Clues:

• Muscle woe
• Carrick bend or Turk's-head
• Stomach tightness
• Gordius' baffler
• 1.85 kilometers/hour
• Gordius' challenge
• Muscle complaint
• Ball of string?
• Bowline or clove hitch
• Granny ___
• Clump of hair
• It might be square
• Square __
• It's tied in church
• Half hitch, for one