| Answer | Crossword Clue |
|---|---|
| ELBOWGREASE | Hard work: Colloq. |
| SWEAT | Work hard: Colloq. |
| PLUG | Work hard: Colloq. |
| DIG | Work hard: Colloq. |
| BONED | Studied hard: Colloq. |
| SLUG | Hit hard: Colloq. |
| CLOUTED | Hit hard: Colloq. |
| DIGS | Works hard: Colloq. |
| CRAMS | Studies hard: Colloq. |
| SWEATS | Works hard: Colloq. |
| DIG | Study hard: Colloq. |
| GRIND | Study hard: Colloq. |
| BASHES | Hits hard: Colloq. |
| TALL | Hard to believe: Colloq. |
| LACING | Driving (a ball) hard: Colloq. |
| TALL | Hard to believe, as a story: Colloq. |
| BARNACLE | Person hard to get rid of: Colloq. |
