| RISER | What is the vertical section between treads of a staircase? (5) |
| RISERS | Vertical sections between the treads of a staircase (6) |
| NEWEL | Vertical post around which the treads of a circular staircase are postioned |
| RECAP | To replace a section of the tread of a tyre, is to do what (5) |
| SIPE | What is a groove in the tread of a tyre to improve its grip? (4) |
| STEP | Rung of a ladder or a tread of a stair (4) |
| PROFILE | Side view of a head; a biographical sketch; a vertical section of Earth's crust showing its strata; or, a user's personal page on social media (7) |
| LANDING | Touchdown of an aircraft; the disembarkation of a ship; or, a level area at the top of a staircase (7) |
| AZIMUTH | The angular distance from the north or south point of the horizon to the foot of the vertical circle through a heavenly body. In space, it describes the horizontal direction of a celestial body. |
| EPISODE | Instalment of a serialised drama; or, a section between two choric songs or odes in a Greek tragedy (7) |
| BALUSTER | Short decorative pillar forming part of a series supporting a rail, as in the banister of a staircase (8) |
| SIDEBARS | Vertical sections on the edge of a layout |
| GUARDRAIL | A safety barrier at the side of a staircase or road (9) |
| AZ | The azimuth of a celestial body is the angle between the vertical plane containing it and the plane |
| FRIEZE | Broad section between the architrave and cornice of an entablature, often ornamented with sculpture (6) |
| HANDRAIL | A railing at the side of a staircase or balcony to prevent people from falling. |
| BANNISTER | Handrail at the side of a staircase |
| BANISTER | Slender upright posts or rails guarding the side of a staircase (8) |
| NEWELPOST | Handrail support at the top or bottom of a staircase (5,4) |
| BANNISTERS | The handrails of a staircase (10) |
