| Answer | Crossword Clue |
|---|---|
| STEP | Riser and tread. |
| STAIR | Riser and tread |
| STEP | Riser and tread |
| STAIR | Riser and tread, combined |
| STRINGER | Tread and riser support |
| STAIR | It consists of a riser and a tread |
| STAIR | Riser plus tread |
| STAIR | Tread plus riser |
| STEP | Riser plus tread. |
