Across 1. It means lasting for a long time or longer than expected or usual. 5. It means (of a change or distinction) so delicate or precise as to be difficult to describe or analyze. 7. It means to say something abruptly, especially as an interruption or aside. 8. It means existing or occurring within the boundaries of a single state. 10. It means the extreme edge of land bordering on water. 14. It means occurring at irregular intervals; not continuous or steady. 15. It means interwoven or entangled. 17. It means well known for something bad. 18. It means not influenced by strong emotion, and so able to be impartial. 21. It means a temporary departure from the main subject in speech or writing. 24. It means distribute or spread over a wide area. 25. It means the arrangement of events in time order. 26. It means to reply to a remark or accusation angrily or sharply. 27. It means with great energy and enthusiasm in pursuit of a cause or objective. 28. It means the action or process of twisting or being twisted.

Down 1. It means spread throughout (something); pervade. 2. It means destroy completely. 3. It means existing or occurring within the walls of an institution (especially a school). 4. It means done or acting according to a fixed plan or system. 6. It means returned to a former or less developed state. 9. It means a person who acts as a link between people who cannot or do not wish to communicate directly. 11. It means questioned formally and often intensively, especially by the police. 12. It means (Of a person or their actions) wishing to do what is right. 13. It means extremely steep. 14. It means existing or occurring within a vein. 16. It means a person's inherent qualities of mind and character. 19. It means the complex or reciprocal action or influence among two or more things. 20. It means a system for communication between different parts of a building or vehicle. 22. It means the grip of a tire on the road or of a wheel on a rail. 23. It means softened or lessened in sound or intensity.