| Answer | Crossword Clue |
|---|---|
| JAWS | Walls of a canyon |
| DALLES | The nearly vertical walls of a canyon. |
| DALLES | Steep canyon walls |
| ECHO | Bounce off canyon walls |
| ECHOING | Bouncing off the Grand Canyon walls |
| PERICARP | Walls of a ripened fruit |
| ESCARPS | Inner walls of a rampart ditch |
| AORTA | Its walls withstand a lot of pressure |
