| GLASSBOTTOM | Feature of some tour boats, and of the answers at 3-, 8-, and 24-Down |
| JEROME | Author of the humorous account of a trip up the Thames in Three Men in a Boat and of a cycling tour in Three Men on the Bummel (6) |
| GADARENE | Enraged a cuckoo at 3 (8) |
| IVY | Vine "climbing" inside the answers at 3-, 5-, 11-, and 35-Down |
| PARTYINTHEBACK | Tongue-in-cheek description of a mullet, and of the answers to the starred clues |
| THREELINES | Feature of haiku, and of the answers to starred clues |
| HEB | Lang. from which 8- and 24-Down come |
| RAG | Tatter placed in each of the answers at 20-, 28-, 45-, and 52-Across |
| ITSAGREATDEAL | What could be said for any of the answers at 20-, 30- or 38-Across |
| STRIPS | What 8 and 24 put on vessel about to set off (6) |
| SENIORPARTNERS | More than one 19 potentially from 2 & 14, 6 & 20 or 8 & 24 (6,8) |
| VIVIANDARKBLOOM | "Lolita" character whose name is an anagram of the answer at 16-Across |
| UPPERMANAGEMENT | Top of an organizational chart, and a hint to the first words of 3-, 8- and 17- |
| OFFSHORE | In the last four years, tour boat skipper John Barry has noticed a new feature of the sardine run. They have moved further ... (8) |
| WINETASTING | Adult activity at the end of some tours (2 wds.) |
| ITAL | Like the answers at 6-Acr. and 31-Acr. |
| LOTTA | The Star's columnist Ms. Dempsey who would astonish then-Princess Elizabeth (on a tour of Canada with Prince Philip in 1951) by leaping fully clothed into the Ottawa River from a royal tour boat to ge |
| MICDROP | End of some tour-de-force solos |
| PEDESTAL | You'll find the answer at the foot of the column (8) |
| NIAGARAFALLS | Where to board the Maid of the Mist tour boat |
