| Clue | Length | Answer |
|---|---|---|
| Sustained | 3 letters | fed |
| Sustained | 4 letters | held |
| Sustained | 5 letters | rapid |
| Sustained | 5 letters | solid |
| Sustained | 5 letters | rigid |
| Sustained | 6 letters | static |
| Sustained | 6 letters | steady |
| Sustained | 6 letters | stable |
| Sustained | 6 letters | torpid |
| Sustained | 6 letters | upheld |
| Sustained | 7 letters | undying |
| Sustained | 7 letters | regular |
| Sustained | 7 letters | running |
| Sustained | 8 letters | staccato |
| Sustained | 8 letters | unfading |
| Sustained | 8 letters | unbroken |
| Sustained | 8 letters | repeated |
| Sustained | 9 letters | steadfast |
| Sustained | 9 letters | unchecked |
| Sustained | 9 letters | unfailing |
| Sustained | 9 letters | unvarying |
| Sustained | 9 letters | vibrating |
| Sustained | 9 letters | pulsating |
| Sustained | 9 letters | quiescent |
| Sustained | 9 letters | unstopped |
| Sustained | 9 letters | unceasing |
| Sustained | 9 letters | unaltered |
| Sustained | 9 letters | remaining |
| Sustained | 10 letters | unchanging |
| Sustained | 10 letters | stationary |
| Sustained | 10 letters | continuing |
| Sustained | 10 letters | stuttering |
| Sustained | 11 letters | unremitting |
| Sustained | 11 letters | undestroyed |
| Sustained | 12 letters | unchangeable |
| Sustained | 13 letters | uninterrupted |
| Sustained | 14 letters | unintermittent |
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