| Answer | Crossword Clue |
|---|---|
| CELT | Forerunner of the Irish and Welsh |
| CELT | Ancestor of the Irish and Welsh. |
| TERRIERS | Welsh and Irish |
| CELTS | Irish and Welsh |
| CELTS | Irish and Welsh, e.g. |
| OGPU | Forerunner of the NKVD and KGB |
| ATRA | Forerunner of the Sensor and Mach3 |
| ATRA | Forerunner of the Sensor, Mach3 and Fusion |
