Related Clues:

• Lifeguard, at times
• White-hat wearer
• Villain's vanquisher
• White knight, stereotypically
• Johnny-on-the-spot, perhaps
• Han or Luke, e.g.
• Subway purchase, perhaps
• Sandwich shop order
• Super sandwich
• Decorated veteran, e.g.
• Army-medal recipient
• Dragon slayer
• Hercules, for one
• Apt lunch for Superman?
• Medal deserver