| Answer | Crossword Clue |
|---|---|
| INFRA | Prefix with "red" or "structure" |
| INFRA | Prefix with red or structure |
| INFRA | Prefix with "red" or "sound" |
| INFRA | Red or structure starter |
| INFRA | Red or structure attachment |
| INFRA | Start for "structure" or "red" |
| INFRA | Start for red or structure |
