A little playtime

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Across
  1. 4. End of conflict (5)
  2. 8. Playground jumper (12)
  3. 9. Only river to cross the equator twice (5)
  4. 11. Tubular hope? (9)
  5. 12. Self-belief (9)
  6. 13. Capital of Malawi (8)
  7. 15. End of the holidays? (12)
  8. 16. Nostalgic frozen treat (6)
  9. 17. School transport (3)
Down
  1. 1. Step to the beat (5)
  2. 2. Playful trouble (8)
  3. 3. Early school meal group (13)
  4. 4. Forward development (8)
  5. 5. Disease-preventing jab (7)
  6. 6. Carry-all (3)
  7. 7. Save the Children founder Eglantyne's surname (4)
  8. 10. Sign up (4)
  9. 14. Healthy (food) (10)