| SARGASSO | ___ Sea - part of North Atlantic that is dense with floating seaweed (8) |
| EBONY | Hardwood that is dense enough to sink in water (5) |
| BARENTS | ___ Sea - part of Arctic Ocean to north of Norway and Russia (7) |
| STHELENA | Volcanic island in the SE Atlantic that was scene of Napoleon's exile (2,6) |
| IRISHSEA | Arm of North Atlantic between GB and Ireland (5,3) |
| PHARAOHS | Ancient rulers of North Atlantic archipelago, they say |
| AIRCRAFT | A Catholic with floating structure catching one plane (8) |
| FINSBURY | Anger about rubbish bins in part of North London (8) |
| MANITOBA | Oman a bit hot? Try this part of North America (8) |
| BUOYANCY | Bouncy? Ay! And to do with floating (8) |
| SARGASSOSEA | Body of water in the North Atlantic Ocean strewn with free-floating seaweed (8,3) |
| TYRRHENIAN | -- Sea, part of Mediterranean Sea west of Italy (10) |
| SEA | Part of the North Atlantic, lying between the West Indies and the Azores, notorious for its floating seaweed (8,3) |
| ARNO | Italian river that flows into the ligurian sea (part of the Mediterranean) |
| CARIBBEAN | A sea, part of west Atlantic |
| ERIN | Is the Bering Sea part of Ireland? (4) |
| BRAC | Island in the Adriatic Sea, part of Croatia (4) |
| KENNINGTON | Part of south London where south is north in part of north London |
| IRISHMOSS | Purplish-red, edible seaweed of North Atlantic coasts (5,4) |
| ARABIAN | Sea, part of the Indian Ocean (7) |