| APRESSKI | Social activity on the slopes ... or a hint to the starts of 18-, 23-, 40- and 54-Across |
| POSTDATING | Social activity on a military base? |
| GALLERY | Anagram of 54-Across's ending that can follow the first word of 20-, 33-, 40- and 54-Across |
| SEEYA | Parting words, perhaps after the visit suggested by the starts of 20-, 38-/40- and 54-Across |
| MOGUL | Sight on the slopes or in the boardroom |
| WAX | 1eed on the slopes or the waves |
| YOUREFIRED | Dreaded cry from a boss ... or a hint to the ends of 18-, 23-, 40- and 53-Across |
| HERRINGBONE | Method of ascending a ski slope; or, a pattern found on Harris or Donegal tweed cloth and garments ( |
| WHATSPOPPIN | Slangy question of greeting ... or a hint to 18-, 23-, 40- and 53-Across |
| SLIDE | Descend down a smooth slope or a 2019 R&B hit by H.E.R. featuring YG |
| SLANT | A slope or tilt; one's angle or point of view; bias in an article; or, a gybe (5) |
| CREVASSE | Crack in a mountain slope or a glacier (8) |
| RAMP | A slope; or, a speed bump (4) |
| SUNSPOT | Sign of magnetic activity on the surface of our star |
| TRAFFIC | The amount of activity, on the road perhaps |
| MAZE | Activity on the back of a cereal box, perhaps |
| DRIVING | Activity on the road ... or the golf course |
| FIRING | Having a shot at host Lord Sugar's regular activity on The Apprentice? (6) |
| TRICKORTREATING | Children's doorbell-ringing activity on the eve of November 1 (5-2-8) |
| TODAY | Bustling activity on the rise blocking Turkey's borders at the present time (5) |