Related Clues:
- Large lunch sandwich, for short
- Undersea craft (Abbr.)
- Undersea vessel
- Voyager to the bottom of the sea
- 'Jelly Roll, Bix and ___' (1994 history of early jazz)
- Long deli sandwich
- Underwater craft, briefly
- Deputy on bench in test
- U-boat, e.g
- Footlong, e.g
- Cousteau craft
- Prefix for the answers to starred clues, and word needed for those clues to make sense
- The Red October, e.g
- Prefix for way or marine
- Easily pranked teacher, maybe