| Clue | Source | Date |
|---|---|---|
| It flows through Spalding to The Wash (7) | ||
| Stamford's river (7) | ||
| 6 linking lakes Ontario and 15 | The Guardian Weekend | 26 Mar 2022 |
| Southern Ontario city | Canadiana | 28 Jun 2021 |
| Canal linking Lakes Erie and Ontario | ||
| Canal in Canada. | ||
| ___ good. | ||
| Canadian canal. | ||
| Canal between Lake Erie and Lake Ontario, 27½ miles. |