Solve the crossword given below by using portmanteau words with the help of the clues given below.

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Across
  1. 5. HELICOPTER+AIRPORT
  2. 6. BREAKFAST+LUNCH
  3. 8. INTERNET+CITIZEN
  4. 9. GASOLINE+ALCOHOL
  5. 11. GUESS+ESTIMATE
  6. 12. MEDICAL+EVACUATION
Down
  1. 1. ELECTRONIC+MAIL
  2. 2. BEAUTY+UTILITY
  3. 3. FOURTEEN+NIGHTS
  4. 4. CHANNEL+TUNNEL
  5. 7. MODULATOR+DEMODULATOR
  6. 10. TELEVISION+BROADCAST