Related Clues:

• It's tied at the altar
• Bowline, for one
• Gordian or slip follower
• Eskimo people
• See 43-Across
• Two-by-four flaw
• Perplexity
• Tie-up
• Board defect
• Sailor's unit
• Word with Gordian or slip
• Vegan's no-no
• Bovine product
• Sea mile
• Bad spot for a nail