A little playtime

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