| DAVY | Humphry ___ (1778-1829) |
| REPTON | Humphry ___ was a celebrated landscape designer (6) |
| SODIUM | Element discovered by Humphry Davy |
| WARD | Electoral district; Mrs Humphry --- |
| LANDSCAPE | Type of gardener exemplified by Humphry Repton (9) |
| CLINKER | Smollett's Humphry |
| SAFETYLAMP | Humphry Davy's invention |
| SMOLLETT | Author of The Expedition of Humphry Clinker (8) |
| CAPABILITY | Nickname of the landscape architect Lancelot Brown, whose successor is generally regarded to be Humphry Repton (10) |
| LAMP | See 8D, Down Safety device named after its 18th/19th-century Cornish inventor, Sir Humphry (4,4) |
| CHLORINE | Chemical element discovered by Carl Wilhelm Scheele in 1774 but named by Sir Humphry Davy in 1810 (8) |
| SAFETY | - lamp; form of illumination used in a coal mine such as one designed by Sir Humphry Davy (6) |
| MINE | System of tunnels and excavations for the extraction of coal, diamonds, gold and other ores, for which Sir Humphry Davy invented a type of safety lamp (4) |
| WOBURN | - Abbey; surrounded by deer park landscaped by Humphry Repton, seat of the Dukes of Bedford, once home to Duchess Anna Maria who popularised the ritual of afternoon tea (6) |
| REDBOOK | Any one of the Morocco leatherbound journals created by Humphry Repton to showcase his proposals (3,4) |
| BARIUM | Metallic element first isolated by Sir Humphry Davy in 1808 (6) |
| NITROUS | Poet Coleridge, assisted by friend Humphry Davy, tried composing poetry under the influence of what? (7,5) |
| OXIDE | Poet Coleridge, assisted by friend Humphry Davy, tried composing poetry under the influence of what? (7,5) |
| CALCIUM | Named by its discoverer Sir Humphry Davy after the Latin for "lime", an element/mineral occurring in bones, chalk, coral reefs, Cotswold stone, marble, pearls and seashells (7) |
| METHANE | Sir Humphry Davy invented a safety lamp to reduce explosions of what gas in mines? (7) |