| JUBILEE | Celebration, particularly of a significant anniversary (7) |
| ANNIVERSARY | Annual celebration, particularly of a marriage date (11) |
| IFORGOT | Unwanted words on a significant anniversary (1,6) |
| BOXINGDAY | Celebration particularly enjoyed by the answers to asterisked clues? (9) |
| CATECHISM | Oral instruction, particularly of a religious nature |
| EIGHTIETH | Destroy the nameless thing that is a significant anniversary (9) |
| TERCENTENNIAL | Criminal let in entrance for a significant anniversary (13) |
| HEIST | Robbery, particularly of a bank (5) |
| CLASSIC | Paradigm, particularly of English literature (7) |
| CENTENARY | The 100th anniversary of a significant event; or, its celebration (9) |
| GOLDENJUBILEE | The fiftieth anniversary of a significant event (6,7) |
| CONCORDANCE | A list showing every use of a significant word in a text, especially the Bible |
| ERIE | Site of a significant War of 1812 victory |
| CELEBRATION | The marking of a significant event |
| ERAL | Of a significant period |
| TOSPEAKOF | Of a significant nature (2,5,2) |
| MILESTONE | Significant anniversary, perhaps (9) |
| CUTHBERT | Saint of Lindisfarne whose life, legacy and protection of nature, particularly of his namesake Cuddy's duck, are regarded as an early blueprint for wildlife conservation (8) |
| STEEN | Dutch master of the genre scene, particularly of chaotic households that could do with a good clean (5) |
| RUNT | The weakest in a litter, particularly of piglets or puppies |