Related Clues:

• Underwater craft (abbr.)
• Temporary teachers, informally
• Stand up before someone tips those held in reserve
• Sandwiches or standbys
• Sandwich shop creations
• Hero sandwiches, for short
• Elongated sandwiches
• Hearty sandwiches
• Dues to be paid for players not starting
• Replacements
• Long lunch offerings, briefly
• Lacking credit, cancels membership fee
• Teachers' fill-ins, for short
• Heroes that don't wear capes
• Extended lunches?