Related Clues:

• See 53-Down
• Butcher's stock
• Protein source
• Flesh
• Partner of potatoes
• Substance
• Spam, e.g.
• Good source of protein
• Cold cuts, e.g.
• Potatoes' partner
• Vegetarian's no-no
• Spam, ham or lamb
• Potatoes partner
• Beef, e.g.
• Butcher's goods