| SODIUMCHLORIDE | It's found in the ocean, and briefly in barnacles |
| RNA | Molecule hidden in "barnacles" |
| SEAL | Seen in the ocean and in the house also (4) |
| SPLASH | Drop in the ocean and mountains turn quiet (6) |
| CLEAR | Net covered in barnacle armour (5) |
| CIRCLING | With 56-Across, an unwelcome sight in the ocean, and a description of the answers surrounding this puzzle's edges |
| ZOOM | Climb sharply and briefly in aircraft a change camera's focal length (4) |
| NOD | Inclines one's head slightly and briefly in greeting, assent or command |
| GENERIC | Somewhat green and briefly in charge of a class |
| HABITATS | Different species live in different ___. Some like the trees, others the ocean and some the desert. |
| MARTINPLATT | Coronation Street character, played by Sean Wilson, who appeared 1985-2005 and briefly in 2018 |
| OTEC | Ocean thermal energy conversion, abbreviated. This form of energy conversion uses the temperature differences between the warm surface waters of the oceans and the deeper cold waters to generate power |
| SEAWATER | Stare in awe, bewildered by what can be found in the ocean |
| ATLASES | Books of maps and sailor found in the ocean, capsized (7) |
| SPONGE | Porous mass of fibres found in the ocean (6) |
| ATLANTIC | Latin cat to be found in the ocean (8) |
| SEPIA | Pigment, initially one found in the ocean |
| DEPTHS | No CIA cadetship found in the ocean (6) |
| CANOE | Boat found in the ocean (5) |
| SALTY | Like the ocean and potato chips |
