| OLEA | Type genus of the olive family, whose members include the ash, privet, jasmine etc. (4) |
| SYRINGA | Plant genus of the olive family (Oleaceae) to which the lilacs belong (7) |
| LILAC | A plant in the olive family whose genus name Syringa, meaning "tube" (5) |
| CHEN | New Chester family whose members include Sam, Lizzie and Mason (4-8) |
| ECHIUM | Eurasian plant genus of the borage family whose members include the blue-flowered viper's bugloss (6) |
| KELP | Large brown seaweed, the ash of which is used as a source of iodine (4) |
| TIPU | Give you a clue, you hear, for who'll be in Munster's clash of the ash! (4) |
| NATO | Its members include the USA, Canada, and France (abbr.) |
| TREE | The ash that may be put in the boot (4) |
| AROID | Any plant of the arum family (Araceae), whose members include the tannia and the peace lily (5) |
| WERT | "For if thou ___ cut out of the olive tree...": Romans |
| STUB | Counterfoil found in the ash-tray (4) |
| ERYNGIUM | Plant genus in the parsley family (Apiaceae) whose members include the European sea holly (8) |
| IPOMOEA | Plant genus in the family Convolvulaceae whose members include the morning glory and sweet potato (7) |
| SOLANUM | Herbaceous plant genus whose members include the potato, aubergine, sunberry etc. (7) |
| BOWESLYON | Scottish family whose members include Lady Elizabeth ?, the late Queen Mother (5-4) |
| MUNSTERS | The ---, TV family whose members include Herman, Lily, Eddie and Marilyn (8) |
| WILLIAMS | New Chester family whose members include Sam, Lizzie and Mason (4-8) |
| ADDAMS | The unorthodox TV family whose members include Wednesday, Pugsley and Uncle Fester (6) |
| CFL | Org. whose members include the Blue Bombers and Alouettes |
