Across 2. an undoubted or self-evident truth; a statement that is clearly true and does not therefore add anything important to a discussion 7. a person who claims to have knowledge or skills that they do not really have 8. having or showing great knowledge that is gained from academic study 9. to praise somebody/something very much 10. to influence somebody so that they are likely to think or behave in a particular way; to make it likely that you will suffer from a particular illness

Down 1. to begin talking about a subject that is difficult to discuss 3. to have and show a lot of respect for somebody/something 4. done without any good reason or purpose and often having harmful effects; unnecessary 5. the study of the origin and history of words and their meanings 6. that cannot be changed; that will never change = unchangeable