Related Clues:

• Muscular strength
• See 43-Across
• Vegan's no-no
• Bovine product
• Brawn
• Type of meat
• Problem
• Strengthen, with 'up'
• Vegan's taboo
• "Where's the ___?"
• Muscle complaint
• ___ Bourguignonne
• Cavil
• Hamburger meat
• Steak or ground round