| PRINCESS | Class 47 that operated 'Staycation Express' trains in the summer of 2020 (8, 8) |
| GALLOWAY | Class 47 that operated 'Staycation Express' trains in the summer of 2020 (8, 8) |
| CAMPS | Where Lions and Bears train in the summer |
| LETUP | Slackening of uphill express train in Chicago |
| FOLKLORE | Taylor Swift's first studio album of 2020 (8) |
| PINKFLOYD | Band that fittingly played its album "The Wall" at the former site of the Berlin Wall in the summer of 1990 |
| PORTMANTEAUWORDS | Maybe glamping staycation in town with mud opera star organised |
| LONDONBRIDGE | Fergie song that reached #1 on the Billboard Hot 100 in the summer of 2006: 2 wds. |
| PROMISCUOUS | Nelly Furtado/Timbaland song that reached #1 on the Billboard Hot 100 in the summer of 2006 |
| HIPSDONTLIE | Shakira/Wyclef Jean song that reached #1 on the Billboard Hot 100 in the summer of 2006: 3 wds. |
| SAINT | Name applied to Class 47 in the 1990s to mark the 1,400th anniversary of the death of famous Iona resident (5, 7) |
| COLUMBA | Name applied to Class 47 in the 1990s to mark the 1,400th anniversary of the death of famous Iona resident (5, 7) |
| ISABEL | Forename of the author who penned The Shooting Party and The Summer of the Royal Visit (6) |
| RACERIOT | One of more than 150 that occurred in the US during the summer of 1967 |
| POTSDAM | Where did Stalin, Churchill, and Truman meet in the summer of 1945? (7) |
| TICKERTAPE | It fell on Neil Armstrong in the summer of '69 |
| THEGREATGATSBY | 1925 novel by F Scott Fitzgerald set in the summer of 1922 |
| RETSINA | Wine served in front of express trains on the move |
| VANDE | Name of the high-speed Express trains flagged off by Prime Minister Modi in Katra. (5) |
| ENID | Forename of illustrator "Marco" Marx who designed moquette seating fabric for London Underground trains in the 1930s and stamps marking the start of Queen Elizabeth II's reign (4) |
