| Clue | Source | Date |
|---|---|---|
| Chemistry procedure utilizing a reagent | Premier Sunday | 15 Jun 2025 |
| Lab process in which small bird takes part | ||
| Its binding method reversed by lab procedure (9) | ||
| Only e.g. great and blue permitted in this gradual process? | The Telegraph Toughie | 19 May 2023 |
| Bird has adequate amount for chemical process | ||
| Test procedure for bird food | ||
| Little bird given measured food in lab procedure | ||
| Chemistry lab procedure | Universal | 26 Apr 2016 |
| Bird given measured feed in lab procedure | The Times Cryptic | 12 Feb 2015 |