| Answer | Crossword Clue |
|---|---|
| boffo | highly effective or successful |
| boffos | highly effective or successful |
| cut | to be effective or successful; satisfy a need |
| result | to obtain a notable or successful result or response; be effective |
| effectual | (typically of something inanimate or abstract) Successful in producing a desired or intended result; effective |
| efficacious | (typically of something inanimate or abstract) Successful in producing a desired or intended result; effective |
| hot | (in sports and games) to become very effective or successful; score or win repeatedly or easily |
| roaring | brisk or highly successful, as trade |
