Related Clues:
- River fish
- Musical astronaut Lance
- Lake ___
- Low notes
- Paul McCartney played it for the Beatles
- Bluefin of the sea
- Brook swimmer
- They chase flies
- Sandwich filler, sometimes
- Kind of melt
- Charlie of commercial fame, for one
- ___ amandine
- Main ingredient in tekka maki
- Deli staple
- Lake denizen, and hint to this puzzle's theme