| OSSIANIC | Irish literary society founded in 1853 and named for the ancient narrator Oisin (8) |
| MARATHON | Long distance race over 42 kilometres named for the ancient battlefield from which Pheidippides, in legend, brought the news to Athens of victory against the Persians |
| SAPPORO | Beer brand founded in, and named for, the largest city in Hokkaido |
| CARME | Small moon (with a radius of 14 miles) discovered in 1938 by Seth Barnes Nicholson and named for the mother of the Cretan deity Britomartis (5) |
| ESTHERSUMMERSON | Heroine of Charles Dickens' Bleak House (1853), and the author's only female narrator (6,9) |
| PEEL | Favoured food of the Guernsey Literary Society? (6,4,3) |
| PIE | Favoured food of the Guernsey Literary Society? (6,4,3) |
| POTATO | Favoured food of the Guernsey Literary Society? (6,4,3) |
| CRIMEANWAR | Hostilities between 1853 and 1856 (7,3) |
| ACADEMIEFRANCAISE | Parisian literary society |
| STEINWAY | _ & Sons, a German-american piano company founded in 1853 in New York City (8) |
| THEFIELD | British monthly magazine about country matters and sports, founded in 1853 |
| SYRACUSE | It was the chief city of Sicily for the ancient Greeks. It was settled about 734 BCE by Corinthians, and its history is a long story of invasions and conflict, including the Allied invasion of 1943. I |
| TIRNANOG | An otherworldly realm in Irish mythology best known from the story of Oisin |
| POLONIUM | Element discovered by Marie Curie and named for her home country (8) |
| FINNEGAN | Scandinavian, for example, introducing an Irish literary name (8) |
| GRANDEUR | Greek with term for the ancient city's magnificence (8) |
| SALTAIRE | Sir Titus's model village near Bradford built in 1853 for the textile workers at his mill (8) |
| TROLLOPE | Anthony ___, English author and civil servant who introduced the pillar box to mainland Britain in 1853 (8) |
| SCULPTOR | Henry Moore or Oisin Kelly, say (8) |