| Clue | Source | Date |
|---|---|---|
| To ad-lib requires energy and variable uptick in rhythm? | The Telegraph Toughie | 21 May 2025 |
| Perform or speak without preparation (11) | ||
| Once rhythm increases, mostly ad lib | The Telegraph Cryptic | 17 Jul 2024 |
| Do it off the cuff, like proxies who mete out punishment (11) | ||
| Ad-lib, using energy and variable increase in speed | ||
| Perform without preparation and expose timer malfunction |