Related Clues:

• Theme of this puzzle
• Ties up
• Knots
• Difficult problems
• Entanglements
• Ship speed units
• Argues (with)
• Snarls
• Tangles
• Some are square
• Nautical measures
• Stomachs may be in them
• Certain speed units
• Shoelace problems
• Bowline and sheepshank