SATURDAY’S SOLUTION

Across: 1. Cohort 4. Steerage 9. No less 10. Archives 12. Interfere 13. Minor 14. Commentators 18. Washing-lines 21. Llama 22. Corposant 24. Cast-iron 25. Minima 26. Sea-snake 27. Tennis Down: 1. Convince 2. Half-time 3. Riser 5. Tercentenary 6. Ephemeral 7. Advent 8. Ensure 11. Beat the clock 15. Emanation 16. Invasion 17. Ash-trays 19. Places 20. Cassia 23. Ovine