Y as long E WITH CHALLENGES!

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Across
  1. 3. AN APOLOGY
  2. 4. LOTS OF SOUNDS
  3. 6. CONFUSED/NOT ABLE TO SEE THROUGH
  4. 9. WHAT NEEDS TO BE DONE
  5. 11. HARD/IMMOVABLE
  6. 12. SUPER HAPPY/EXCITED
  7. 15. STICKY/LIKE SLIME
Down
  1. 1. SUPER SMALL
  2. 2. FULL/STURDY
  3. 3. FULL OF SPOKES/PRICKLES
  4. 5. HELLO
  5. 7. ANNOYING
  6. 8. SHOULD...COULD...
  7. 10. STYLISH/SHARP IN APPEARANCE
  8. 13. YELLOW FLOWER
  9. 14. NOTHING