What's happening?

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Across
  1. 4. cube root of 125
  2. 6. month of Diwali
  3. 7. a signal for a military force to withdraw.
Down
  1. 1. a Sia song with the lyrics, "I'm a Porsche with no brakes."
  2. 2. number of days in a week
  3. 3. ___-day meal
  4. 5. a revolution around the Sun