Mini 9/19

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Across
  1. 1. Stylish panache
  2. 4. Environmentally friendly prefix
  3. 5. Philosopher who posed the question "What can I know?"
  4. 7. Shade of light purple
  5. 10. Party game that tests how low you can go
Down
  1. 2. Sarcastic "Yeah, sure"
  2. 3. Sardonic boss on "Parks and Recreation"
  3. 6. ___ acid (protein builder)
  4. 8. Visitor from outer space
  5. 9. Cancel on plans at the last moment