| Answer | Crossword Clue |
|---|---|
| SHAVINGS | They go up in a plane |
| ARMRESTS | They may go up in a plane |
| AERONAUTS | They go up and down |
| FIREWORKS | They go up and down |
| STEPS | They go up and down |
| HEMS | They go up and down |
| STAIRS | They go up and down |
| HEMS | They go up and down periodically |
| SHINS | They go up to the knees |
| UMBRELLAS | They go up when it comes down |
| ERAS | They go down when zeros go up |
| YOYODIETS | They make you go up and down |
| SINEWAVES | They go up and down on axes |
