| Answer | Crossword Clue |
|---|---|
| KNEEDEEP | Submerged to a certain depth. |
| paravanes | A device towed behind a boat at a depth regulated by its vanes or planes, so that the cable to which it is attached can cut the moorings of submerged mines |
| sill | submerged ridge at relatively shallow depth separating the basins of two bodies of water |
