| AURORABOREALIS | Luminous phenomenon often called the northern lights (6,8) |
| AURORA | Upper atmosphere phenomenon called the Northern Lights, ... borealis |
| BOREALIS | Atmospheric phenomenon also called the northern lights (6,8) |
| NATURALWONDERS | The Northern Lights and Niagara Falls, as examples in Canada: 2 wds. |
| MICHAELJACKSON | Late singer often called the 'king of pop' (7,7) |
| OPTICALILLUSION | Phenomenon often seen in the art of MC Escher (7,8) |
| BLACKCAP | Migratory warbler, sometimes called the northern nightingale (8) |
| CROPCIRCLE | Agricultural phenomenon often attributed to UFOs |
| FOG | Weather phenomenon often seen in London |
| STELMOSFIRE | Luminous phenomenon on ships |
| ELMOS | St. ___ fire (luminous phenomenon) |
| DEADWATER | Nautical phenomenon often found where glacial run-off flows into a fjord, slowing down ships using propellers |
| TROMSO | University city which is Norway's "gateway" to the Arctic; one of the best places to see the Northern Lights (6) |
| SAD | Nyctanthes arbor-tristis, often called the night flower, is also known as the Indian mourner tree, the ___ tree or tree of ___ness (3) |
| RIFLE | The Winchester one is often called the "gun that won the west" (5) |
| TWENTIES | The decade after WW1 is often called the Roaring ... |
| CYBELE | Phrygian goddess of nature often called the "Mother of the Gods" (6) |
| DERRY | Northern Ireland urban area that is often called the 'Maiden City' |
| POTTHELOTDOTT | Another nickname for the Scottish snooker player often called the Pocket Dynamo |
| CITYOFLIGHT | Paris is the place most often called the ____ |
