| REGNALYEAR | Period starting on the anniversary of an English monarch's accession |
| LENT | Period starting on Feb. 17 in 2021 |
| CURTANA | Unpointed sword carried before an English monarch at a coronation as an emblem of mercy; from Latin, 'short' (7) |
| QUEENANNESLACE | Plant said to be named after an English monarch who loved fine needlework |
| DIPLOMAT | The International Day of ____s takes place on the anniversary of the foundation of the UN |
| OBIT | An old boy returns to it on the anniversary of the death (4) |
| PIDAY | Observance that falls on the anniversary of Einstein's birth |
| NURSES | International _ Day, celebrated worldwide on the anniversary of Florence Nightingale's birth (6) |
| ARMISTICEDAY | The anniversary of the signing of the truce that ended World War I, now kept on Remembrance Sunday (9,3) |
| BASTILLE | The anniversary of the storming of this Paris prison is celebrated by France on July 14 |
| OBELISK | The Flaminio ---, taken to Rome from Heliopolis by Augustus to mark the anniversary of the conquest of Egypt (7) |
| MARCH | Month in which the anniversary of the assassination of Julius Caesar occurs |
| CINCODEMAYO | The anniversary of Mexico's victory over the French at Puebla in 1862, celebrated on May 5 (5,2,4) |
| BIRTHDAYPARTY | Social event celebrating the anniversary of the day on which a person was born (8,5) |
| TUDORS | Members of an English royal house of Welsh origin that ruled from the accession of Henry VII in 1485 until the death of Elizabeth I in 1603 (6) |
| FROISSART | Medieval historian whose Chronicles chart the events of the Hundred Years' War including the accession of Edward III, the Battle of Crecy and the Peasants' Revolt (9) |
| BIRTHDAY | Have one dry bath on the anniversary |
| WHITEHALL | Palace of _, the main residence of the English monarchs from 1530 to 1698 (9) |
| PRESENTDAY | Now this might describe the anniversary of one's birth (7,3) |
| OCT | Mo. when Germany observes the anniversary of its reunification |