Related Clues:

• F, G, but not H
• Lock locale, maybe
• Hotelier's handout
• Trunk fastener
• 53-Down is one
• Cryptographer's aid
• He wrote "Defense of Fort M'Henry"
• Speck in the ocean
• Indispensable
• "Defense of Fort M'Henry" author
• Tab, for one
• Map part
• Free-throw area
• Shed door device
• Lock securer