| EAGERLY | Enthusiastically ahead of time about the beginnings of the greenhouse effect (7) |
| EXOTICA | Heard, at one time, about the ear, before getting a group of items with a foreign flavour (7) |
| TYNDALL | Irish physicist who laid the foundation for our understanding of climate change and of the greenhouse effect (7) |
| TRADESECRET | Swap short amount of time - about time! - for confidential info (5,6) |
| CATCHPHRASE | Hidden difficulty over period of time about right saying (11) |
| SPEAKATLENGTH | Talk for a long time about the gate planks (5,2,6) |
| ARRHENIUS | Svante August ___, (1859-1927), Swedish chemist and physicist noted for his work on the theory of electrolytic dissociation and his model of the greenhouse effect: Nobel Prize for Chemistry 1903 (9) |
| SEE | Understand something of the greenhouse effect (3) |
| CRUSADE | The campaign is vulgar about the beginnings of sexual abuse (7) |
| OBSCENE | Part of the play following the beginnings of the Old Bill is disgusting (7) |
| OPERATE | Manage to talk pompously about the beginnings of private enterprise (7) |
| MAUDLIN | The beginnings of the universal donor list, in main, is overly sentimental (7) |
| STREAMS | These flowers could be asters about the beginning of the month (7) |
| GENESIS | Some start seeing new book about the beginning of the world (7) |
| PERHAPS | Unusual phrase about the beginning of the Prologue, maybe (7) |
| LOSESIT | Misses the beginnings of the Indian test and snaps (5,2) |
| ALLCAPS | Emphatic type ... or what the beginnings of the longest entries are? |
| DEMESNE | The estate seemed to be settled about the beginning of November |
| THEOREM | Mother is confused about the beginning of Euclidean proposition (7) |
| ANNOYED | Hacked off one day when disturbed about the beginning of November (7) |
