| THESEVENSEAS | All the world's oceans (3,5,4) |
| SEAS | Seven ---, all the world's oceans (4) |
| SEVENSEAS | All the world's oceans (5,4) |
| NIGER | African river, reportedly one of the ten accounting for 90% of the plastic entering the world's oceans |
| ORCA | Apex predator in all of the world's oceans |
| ARCTIC | Which is the smallest of the world's oceans? (6) |
| SEALETTUCE | Edible, crinkly green algae which is found along the shores of the world's oceans (3,7) |
| KRILL | Small marine crustaceans found in all of the world's oceans (5) |
| ATLANTIC | Second largest of the world's oceans (8) |
| MARIANASTRENCH | Deepest part of the world's oceans |
| PACIFIC | Largest of the world's oceans (7) |
| THEBLUEPLANET | David Attenborough documentary series about the world's oceans |
| INDIAN | Third-largest of the world's oceans |
| GLOBETHEATRE | Where for Shakespeare all the world was a stage? |
| HIGHSEASON | When many people holiday on the world's oceans, principally? |
| ILSA | The "she" of "Of all the gin joints in all the towns in all the world, she walks into mine" |
| GIN | "Of all the ... joints in all the towns in all the world, she walks into mine," said Humphrey Bogart |
| OFALL | Famous quote from the 1942 film Casablanca, "_ _ the gin joints in all the towns in all the world..." (2,3) |
| SEVEN | World's oceans, the ... seas |
| COD | Fish hidden backward in "world oceans" |
