Related Clues:

• 40-Down, e.g.
• Pinch hitter
• Alternative to multiple choice
• Ocean traveler
• ___ Pop Records
• Fill in (for)
• Hero, to some
• Standard opening?
• Complete, as a crossword
• Hefty sandwich
• Non-starter
• Player off the pine
• Underwater vessel, briefly
• Basketball's ''sixth man''
• Classroom replacement