Related Clues:

• Undercooked, as steak
• Inimitable
• Still quite red
• Red inside, maybe
• "Still mooing," at a diner
• Bit missing from savoury dish, so blood-red?
• Order to a chef, sometimes
• Like white tigers
• 'On the hoof,' in diner lingo
• Unusual to expose rook rather than bishop
• Of interest to collectors
• One way to serve a steak
• It's unusual to be not well done
• Cooked lightly
• Like a pink steak