| ROLLERDERBY | Contact sport devised in the US in the 1930s associated with Leo Seltzer and Damon Runyon (6,5) |
| HUGO | An aperitif of prosecco, elderflower syrup, seltzer and mint leaves (4) |
| ORRERY | Clockwork model of the solar system devised in the early 18th century (6) |
| BAYES | Presbyterian minister whose mathematical theorem devised in the 18th century for determining conditional probability has become a formula used in everyday life (5) |
| HARD | Like some ciders, seltzers, and lemonades |
| SCIENTOLOGY | A nondenominational movement founded in the US in the 1950s by science fiction author L. Ron Hubbard (11) |
| RHODEISLAND | Smallest state of the US, in the north-east between Massachusetts and Connecticut (5,6) |
| AGENTORANGE | What defoliant was used by the US in the Vietnam War? (5,6) |
| INFLUENCING | Having an effect on information uncle devised in front of gallery (11) |
| ESPERANTIST | Speaker of language devised in 1887 (11) |
| SCRABBLE | A board game featuring lettered tiles, invented in the US in the 1930s (8) |
| LINDY | Lively dance popular in the US in the 1930s, _ hop (5) |
| ARTDECO | Style of design and interior decoration in Europe and the US in the 1920s and 1930s (3,4) |
| LIFEBUOY | This-soap-company-warned-us-in-the-1930s-about-the-dangers-of-body-odour |
| IWOJIMA | Island in the West Pacific that was the scene of prolonged fighting between Japan and the US in the Second World War (3,4) |
| TROPICOFCANCER | Henry Miller novel first published in 1934, the subject of obscenity trials in the US in the 1960s (6,2,6) |
| GOALBALL | Team sport devised for visually impaired athletes in 1946, originally in an effort to help the rehabilitation of injured WWII veterans (8) |
| KID | "The ...... ...", 1951 film starring Bob Hope in the title role that was based on a Damon Runyon sto |
| LEMONDROP | "The ...... ...", 1951 film starring Bob Hope in the title role that was based on a Damon Runyon sto |
| JIVE | Dance which originated in the USA in the 1930s (4) |