Summer Shock Brew Iced Tea

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Across
  1. 2. what you're not when your phone is on flight mode
  2. 5. last word of clue 4 in singular
  3. 6. ((4+6)x4)-(((1+3)^3)-2)
  4. 7. to __ or not to __
Down
  1. 1. short for william
  2. 3. every good rave has an _____ party
  3. 4. what you can find on the left pages