THE NOSTALGIA THEORY

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Across
  1. 3. (verb) to think about something too much, in a way that is not useful
  2. 6. (verb) to find and bring back something
  3. 8. (verb) to feel or express great sadness, especially because of someone's death
  4. 9. (adjective) very powerful, forceful, or effective
  5. 11. (phrasal verb) to explain something clearly, usually in writing
Down
  1. 1. (noun) a lamp whose beam can be directed, or a circle of light produced by such a lamp
  2. 2. (phrasal verb) to discover something by chance
  3. 4. (verb) to wish very strongly, especially for something that you cannot have or something that is very difficult to have
  4. 5. (phrasal verb) to start an activity with a particular aim, to start a journey
  5. 7. (verb) to try to stop something unpleasant or harmful from happening or increasing
  6. 10. (adjective) not interesting or exciting in any way