Related Clues:

• Courageous one
• Replacement
• Possible lunch or dinner item
• Medal recipient, maybe
• Stand-in
• Medal of honor recipient
• Loooong sandwich
• Parade honoree, perhaps
• Life saver, e.g.
• Knight in shining armor
• Dragon slayer, e.g.
• Loan
• Day-saver
• U-boat
• Verne's lunch?