| Clue | Source | Date |
|---|---|---|
| Pollen mix studied by national broadcaster | The Times Cryptic | 16 Oct 2023 |
| National institution to study what youngsters are fed in the cells | The Times Cryptic | 23 Nov 2021 |
| Auntie studied what workers feed their youngsters | ||
| Broadcaster announced it will keep buzzers going | The Times Cryptic | 05 Jul 2017 |
| Workers' food studied by the BBC | The Times Cryptic | 26 May 2017 |
| Auntie prepared endless food for insects | The Times Cryptic | 20 Jan 2016 |
| Substance stored in honeycomb cells. |