| REFRACTION | The change in direction of a wave passing from one medium to another (10) |
| ADAPT | Take from one medium to another |
| STEAMROLLER | Stop and wave, passing a slow vehicle |
| EASTERLY | Yes, later change in direction of the wind |
| TRANSFORMING | Informs Grant about changing from one medium into another (12) |
| DENIM | Study one medium to heavy fabric (5) |
| SHIBBOLETH | His boss at hostelry draws attention back to the change in custom (10) |
| HEREDITARY | Passing from parents to offspring (10) |
| DOWNSTREAM | Narrow creek in Carlingford is flowing in direction of river (10) |
| DOPPLER | The --- effect, the change in frequency of a wave in relation to an observer who is moving relative to the wave source (7) |
| GLIDE | Transitional sound in phonetics, often a semivowel, produced in passing from one speech sound to another (5) |
| COURTORDER | Dour rector moving in direction of Old Bailey? |
| HEADTOHEAD | Go in direction of teacher's meeting |
| TRANSMIGRATION | Disturbance of giant rainstorm passing from one place to another |
| TRANSIT | New start in passing from one place to another |
| SWOOSH | Sound of wind passing from southern tip of fellow, next to a pair of orbs, quietly (6) |
| DEATH | "No more than passing from one room into another," per Helen Keller |
| MILLENNIUMBUG | Computer problem arising from the change in date at the start of the 21st century |
| CHOP | A barter or exchange; a change in direction, as in the wind; a downward blow; or, a slice of lamb or pork (4) |
| DYING | In or associated with the process of passing from life or ceasing to be. |