| Answer | Crossword Clue |
|---|---|
| USSR | Former world power (Abbr.) |
| USSR | Former world power: abbr. |
| USSR | Former world power |
| SSR | Former world power div. |
| USSR | Former world power, briefly |
| USSR | Former world power, shortly |
| USSR | Former world power, for short |
| USSR | World power: Abbr. |
| USA | World power: abbr. |
| USSR | World power until 1991: Abbr. |
| ITAL | Big World Cup power: Abbr. |
| ARG | Big World Cup power: Abbr. |
| AEC | Former nuclear power regulator: Abbr. |
