Let's Get Cryptical with Zania & Jono!

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Across
  1. 1. Neighbouring whenua is briefly cast in bronze (2)
  2. 5. Kangaroo abode taken back from pure Gnowangerup (7)
  3. 8. Plant I can order (9)
  4. 11. Top the joint before best price negotiations make me a happy kiwi (4)
  5. 12. Heading for Sapporo, the plane’s ready for you, sport! (12)
  6. 14. Six balls and King’s clown has had enough (4, 2)
  7. 16. Fruit is unlocking device and tiny, say (4)
  8. 17. Near the beginning in other times (5)
Down
  1. 2. Maternal being in home of the Serengeti isn’t brown (5)
  2. 3. Antipodean family starts building awesome residence, really expecting the tourist season (8)
  3. 4. Pastoralist intermittently schepps hued rod (8)
  4. 6. Transgender question drives a Rolls Royce into doctored biology (3,2,4)
  5. 7. Pugilistic tree mound (7, 4)
  6. 9. Brief sleep without effort, we hear, covers the bottom (7)
  7. 10. Son caught in trap? Retreat! (4)
  8. 13. Bee sticks to a love story of bonded blokes (8)
  9. 15. Kinfolk fail my puzzle (6)