Related Clues:
- 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
- Pinch-hitter
- U-boat, for one
- Nautilus, e.g
- Red October or the Nautilus
- An advance against income
- Contribution; a boat