English crossword puzzle prefix,suffix and clipped words

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Across
  1. 3. focuses on the performance of economics
  2. 4. to go or maneuver around
  3. 7. lab-clipped word
  4. 8. hardly possible
  5. 9. the middle period of night
Down
  1. 1. algo-clipped word
  2. 2. A person to whom money is paid or is to be paid
  3. 5. gym-clipped word
  4. 6. alum-clipped word