Easy Voice with the vowel /u/

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Across
  1. 2. Essential service like water or power
  2. 3. Radioactive element used in nuclear power
  3. 4. Clothing worn by members of an organization
  4. 6. An imagined perfect place
  5. 7. All of space and everything in it
Down
  1. 1. Requiring immediate attention
  2. 2. Used for protection from rain
  3. 5. To improve to a higher standard
  4. 6. Mythical horse with a horn
  5. 7. The best or most extreme