| Solution | Length | |
|---|---|---|
| 3 letters | ||
| rub | 3 | |
| vex | 3 | |
| irk | 3 | |
| 4 letters | ||
| ride | 4 | |
| rile | 4 | |
| ROIL | 4 | |
| make | 4 | |
| sour | 4 | |
| whet | 4 | |
| 5 letters | ||
| peeve | 5 | |
| upset | 5 | |
| agita | 5 | |
| exalt | 5 | |
| annoy | 5 | |
| TEASE | 5 | |
| wound | 5 | |
| worse | 5 | |
| rouse | 5 | |
| worry | 5 | |
| 6 letters | ||
| worsen | 6 | |
| bother | 6 | |
| molest | 6 | |
| sic-on | 6 | |
| tsuris | 6 | |
| nettle | 6 | |
| set on | 6 | |
| set-up | 6 | |
| triple | 6 | |
| ruffle | 6 | |
| weaken | 6 | |
| rankle | 6 | |
| ramify | 6 | |
| 7 letters | ||
| work-up | 7 | |
| torment | 7 | |
| magnify | 7 | |
| enhance | 7 | |
| provoke | 7 | |
| trouble | 7 | |
| inflame | 7 | |
| stir up | 7 | |
| put out | 7 | |
| sharpen | 7 | |
| 8 letters | ||
| step up | 8 | |
| vexation | 8 | |
| soup up | 8 | |
| increase | 8 | |
| separate | 8 | |
| irritate | 8 | |
| redouble | 8 | |
| put-back | 8 | |
| heighten | 8 | |
| embitter | 8 | |
| 9 letters | ||
| WORSENING | 9 | |
| intensify | 9 | |
| reinforce | 9 | |
| 10 letters | ||
| strengthen | 10 | |
| exasperate | 10 | |
| antagonism | 10 | |
| harassment | 10 | |
| ANTAGONISE | 10 | |
| exacerbate | 10 | |
| 11 letters | ||
| SET AGAINST | 11 | |