| Hazard of northern seas | 23 |
| Floe | 4 |
| Floating ice block | 18 |
| Composer Alban | 14 |
| Chunk in the Arctic Ocean | 25 |
| Big chip off the old block? | 27 |
| Titanic's nemesis | 21 |
| Titanic vanquisher | 18 |
| Titanic thwarter | 16 |
| Titanic bane | 12 |
| Sight in the Arctic Ocean | 25 |
| Polar bear's perch | 22 |
| Only about 10 percent of it is visible | 38 |
| North Sea floater | 17 |
| It keeps its head above water | 29 |
| Icy hazard | 10 |
| Ice pack | 8 |
| Ice floe | 8 |
| Ice float | 9 |
| Floating mass of ice | 20 |
| Floating ice | 12 |
| Floating hazard | 15 |
| Floater in the Arctic Ocean | 27 |
| Cold water hazard | 17 |
| Chip off the old ice block | 26 |
| Arctic navigator's concern | 30 |
| Arctic breakaway | 16 |
| Antarctic cruise sight | 22 |
| 'Wozzeck' composer | 26 |
| ''Wozzeck'' composer | 36 |
| Wozzeck's creator | 21 |
| Wozzeck composer Alban | 25 |
| Wayward ice | 11 |
| Walrus's perch | 18 |
| TV's Gertrude | 17 |
| Titanic's woe | 17 |
| Titanic's destroyer | 23 |
| Titanic's bane | 18 |
| Titanic trouble | 15 |
| Titanic problem, really | 23 |
| Titanic nemesis | 15 |
| Titanic mass? | 13 |
| Titanic hazard | 14 |
| Titanic foe | 11 |
| The Titanic's bane | 22 |
| Something tracked by satellite radar | 36 |
| Something that's fallen off a shelf? | 40 |
| Sight near Antarctica | 21 |
| Sea-lane peril | 14 |
| Sea lane growler | 16 |
| Sea lane danger | 15 |
| Roger Kaputnik cartoonist Dave | 30 |
| Polar bear playground | 21 |
| Peril of northern waters | 24 |
| Patty of golfing fame | 22 |
| Opera composer Alban | 20 |
| Only about 10% of it is visible | 31 |
| Oceanic obstacle | 16 |
| Northern seas hazard | 20 |
| North Atlantic sighting | 23 |
| N. Atlantic floater | 19 |
| Mountain, in Africa | 19 |
| Maritime danger | 15 |
| Mad magazine cartoonist Dave | 28 |
| MAD cartoonist Dave | 19 |
| Longtime 'Mad' cartoonist Dave | 38 |
| Liner danger | 12 |
| Large ice mass | 14 |
| Labrador Sea sighting | 21 |
| It sank the Titanic | 19 |
| It might come off the shelf | 27 |
| It may come off the shelf | 25 |
| Icy North Atlantic hazard | 25 |
| Icy hazard at sea | 17 |
| Icy Arctic hazard | 17 |
| Ice mountain | 12 |
| Ice in the sea | 14 |
| Ice in the Ross Sea | 19 |
| Ice follower | 12 |
| Ice flow | 8 |
| Ice block | 9 |
| Huge chunk of ice | 17 |
| Helmsman's headache | 23 |
| Glacier fragment | 16 |
| Glacier calf, for short | 23 |
| Glacier by-product | 18 |
| Glacier Bay sight | 17 |
| Gertrude or ice | 15 |
| Gertrude of radio fame | 22 |
| Gertrude of "The Goldbergs" | 37 |
| Frozen floater | 14 |
| Floe's cousin | 17 |
| Dave of 'Mad' magazine | 30 |
| Common cold hazard? | 19 |
| Cold threat | 11 |
| Cold pack | 9 |
| Cold float | 10 |
| Coast Guard target | 18 |
| Castoff from an ice shelf | 25 |
| Cartoonist Dave of Mad | 22 |