Phrasal nouns and metaphors

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Across
  1. 3. A complete collapse and inability to function (9)
  2. 5. A relatively informal gathering (3,8)
  3. 7. The number of people accepted into an environment (6)
  4. 8. Question someone intensely (5)
  5. 9. The start of a football match (4-3)
  6. 11. A delay caused by a problem (7)
  7. 13. Heavy rain, usually sudden (8)
Down
  1. 1. "Eureka!" he cried, as the solution _________ on him (6)
  2. 2. Intelligent (6)
  3. 3. "I wasn't ______ ____________" i.e. I'm not stupid (4,9)
  4. 4. Complaint by a large number of people (6)
  5. 6. What will probably happen (7)
  6. 10. Contribution e.g. to a meeting (5)
  7. 12. To end a relationship (5-2)
  8. 14. Friendly (4)
  9. 15. The beginning of a condition or situation (5)