| LAMBERT | Unit of luminance named after an 18th century German physicist |
| COULOMB | An SI unit of electric charge named after an 18th century French physicist (7) |
| PAULJONES | Ballroom dance in which the partners switch after circling in concentric rings of men and women, named after an 18th-century Scottish-born US naval officer (4,5) |
| FAHRENHEIT | Temperature scale named after an 18th-century physicist (10) |
| NEILLIA | Genus of the botanical family Rosaceae, named after an 18th century Scottish naturalist (7) |
| VANCOUVER | A city in South West Canada, named after an 18th Century captain of the British Royal Navy (9) |
| SILHOUETTES | Shadow profiles cut from black paper, named after an 18th Century French financier (11) |
| BATHOLIVER | A hard, dry biscuit named after an 18th century English physician (4,6) |
| DAHLIA | Flower named after an 18th-century Swedish botanist |
| GARRICKCLUB | London institution named after an 18th-century actor |
| NIT | Charlie's unit of luminance (3) |
| STILB | A unit of luminance equal to one candela per square centimetre |
| STELLER | Georg Wilhelm ___, an 18th century scientist after whom an eider, sea eagle and sea cow were named (7) |
| WHIMWHAM | From reduplication and "to let the eyes wander", a word for a trinket; a ridiculous notion; an odd device; a sudden fancy or caprice; or, an 18th-century version of a trifle (4-4) |
| SADISTS | Followers of an 18th century Marquis |
| SALLYLUNN | Sponge teacake, an 18th-century speciality of Bath (5,4) |
| PITTTHEELDER | Moniker of an 18th-century British statesman |
| WHERETHERESAQUILL | Description of an 18th-century writing desk? |
| NEOCLASSICAL | Belonging to an 18th-century style of art and architecture (12) |
| QUEENANNESLACE | Part of an 18th-century monarch's shoe? (3 wds.) |
