| Rating | Solver | Clue |
|---|---|---|
| USEFUL | Effective | |
| EFFICIENT | Cost-effective | |
| EFFECTUOUS | Effective. | |
| UTILISATION | Effective use | |
| UTILITARIAN | Effective use | |
| FUNCTIONAL | Effective; useful | |
| NONEFFECTIVE | Not effective. | |
| DEADLIEST | Most effective (toxin) | |
| CONSOLIDATE | Combine into effective unit | |
| ELOQUENCE | Fluent, apt, effective speech | |
| UTILISE | Make effective use of | |
| ELOCUTION | Art of effective speaking | |
| STRONG | Vigorous; effective; forcible; powerful. | |
| EFFECTIVENESS | The quality of being effective. | |
| HOME-SPEAKING | Direct, forcible, and effective speaking. | |
| CAUSATIVE | Effective, as a cause or agent; causing. | |
| PUNCHY | Incisive and effective way to describe a boxer? | |
| COORDINATION | Company makes admission to ministry regarding effective interaction | |
| ECONOMIC | Cost-effective to provide one comic, for a change | |
| ARROW | Proverbially straight, it’s more effective when there’s a bow | |
| EXPLOIT | Make the most effective use of a resource etc. | |
| MAXIMISE | Make the most effective use of a resource etc | |
| OPTIMISE | Make the most effective use of a resource etc. | |
| TELLING | Operating with great effect; effective; as, a telling speech. | |
| INEFFECTIVE | Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal. | |