Yesterday Across:

1. Clocktowers, 9. Public servant, 10. Bar, 11. Verbatim, 14. Anyone, 15ac & 2dn. Mobile library, 18. Fiscally, 20. Phd, 23. Indefatigable, 24. Adolescents.

Down: 3. Chip, 4. Tassel, 5. Workbook, 6. React, 7. Spy, 8. Stumped, 12. Parfait, 13. Unlawful, 16. Inhabit, 17. Plates, 19. Sided, 21. Ague, 22. Peg.