Related Clues:

• Padlock mate
• Anthem author
• Door latch
• CTRL, e.g.
• Integral
• "Defense of Fort M'Henry" writer
• G, but not H
• Padlock securer
• Decoder's tool
• C minor, for one
• Locker
• Answer sheet
• A flat, e.g.
• Padlocked fastener
• Sardine-can opener