| Answer | Crossword Clue |
|---|---|
| INERT | Hard to combine |
| XENON | Hard-to-combine gas |
| INERT | Hard to combine, chemically |
| MERGE | Cause to combine. |
| OENO | "Wine," to combine |
| UNITIVE | Tending to combine. |
| FIRE | Word that can combine with the ends of the answers to the six starred clues |
| SMOKE | Word that can combine with the starts of the answers to the six starred clues |
