World Book Day

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Across
  1. 2. Antarctic animal and publisher (7)
  2. 4. Not a nice, cool young detective really excited weekly, primarily (5,4)
  3. 6. Island kingdom contains hidden wardrobe land (6)
  4. 9. He is worth an unusual name for the family of four rich brothers (9)
  5. 14. Warthogs destroy school (8)
  6. 15. Tanner's knife damaged horror novel (12)
  7. 16. Candid young girl notes down feelings (4,5)
Down
  1. 1. Evil heir to the throne (5,6)
  2. 3. Meat and allow make a Shakespearean lead (6)
  3. 5. Sun-age chasm strangely swallowed by Rick Riordan's hero (6,5)
  4. 7. Script ideal for a mythical sword (7)
  5. 8. Confused smartie is unfair, we hear (7, 4)
  6. 10. Dystopian fantasy results from a convex mirror's path (9)
  7. 11. Ninja son bells—actually, an old resident of Little Kilton (5,4)
  8. 12. Author: just kidding, initially (1,1,7)
  9. 13. Warriors with runes follow a dark chaser (13)