| USHERIN | Mark the start of |
| MANET | His works mark the start of modern art |
| HORSE | Friday marks the start of the Chinese New Year, the Year of the ___. (5) |
| DAWN | Just as morning marks the start of a new day, January is the ___ of a new year |
| MARCHEQUINOX | It marks the start of spring in the Northern Hemisphere |
| OCTOBER | Month that marks the start of the Michaelmas term at Oxford University |
| TAPCEREMONY | Marks the start of maple syrup season |
| SEDER | Meal that marks the start of Passover |
| FOUNDATIONSTONE | Make-up base's tint marks the start of construction (10,5) |
| SANIGNATIO | The most well-known saint with this name is Loyola who founded the Society of Jesus in 1540, but the town of Son Servera, Mallorca commemorates a different personage when the mark the end of an 1820 p |
| OXLEY | Which surveyor and explorer created the myth of the inland sea by reporting that the Macquarie and the Lachlan Rivers both ended in swamps and that this might mark the beginning of a sea? (5) |
| 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) |
| FESTIVAL | Season of concerts, events or performances such as the Proms or that held in 1951 to mark the centenary of the Great Exhibition (8) |
| OBELISK | The Flaminio ---, taken to Rome from Heliopolis by Augustus to mark the anniversary of the conquest of Egypt (7) |
| LAMMAS | Also called Loaf Mass day, this is a festival in the liturgical calendar to mark the blessing of the first fruits of harvest |
| CHIEF | Hail To The ___: song often played to mark the appearance of the US president. (5) |
| LIONS | Three ---, a 1996 song by The Lightning Seeds to mark the England football team's hosting of the European Championships (5) |
| WHITEDWARF | Small faint star of enormous density thought to mark the final stage in the evolution of a sun-like star (5,5) |
| GALANTHUS | The nodding blooms of this genus mark the end of winter (9) |