Related Clues:
- Day saver
- 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?