Related Clues:

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• Casualty of German reunification
• It's common in row houses?
• Squire's burden
• Police badge
• Street from Broadway to South Street
• The Green Monster, in Boston
• See 18 Across
• Defensive armor
• Interactive Facebook feature
• "Another Brick in the ___" (Pink Floyd)
• China has a great one
• Protect or screen
• Protective structure or device
• Is held as protective device