| Answer | Crossword Clue |
|---|---|
| THINNEST | Most unsubstantial. |
| AERY | Unsubstantial |
| FROTHY | Unsubstantial |
| AERIAL | Unsubstantial |
| MEAGER | Unsubstantial |
| AIRY | Unsubstantial |
| AIRY | Unsubstantial. |
| THIN | Unsubstantial. |
| VAPOROUS | Unsubstantial |
| FLIMSY | Unsubstantial |
| TENUOUS | Unsubstantial. |
| SLIM | Unsubstantial. |
| FRAIL | Unsubstantial |
| THIN | Unsubstantial |
| WINDYJAMMER | Unsubstantial ship? |
| AERY | Unsubstantial: Poet. |
| AIRY | Light; unsubstantial |
| EIDOLON | Unsubstantial image |
| PAP | Unsubstantial stuff |
