See the next Weekend Herald for solution

Across 1. ‘Fidel’ brand of oil in endless supply (6) 4. Hector no good – half German! (6) 8. Dog has one (4) 9. Neighbourhoods of six places like Auckland, trendy to be in (10) 11. Composer’s name? Sounds like it (6) 12. Rattle is small – it’s strange, very strange (7) 13. Celebrity sacrifices one to give you your own property (10) 15. Unfortunate effects of fire – no bloody ashes in them! (4) 16. Select sheep for sale – leader of flock missing? – damn! (4) 18. Here on SH6 optimistic expectations confuse (4,6) 21. Film director pictured what Robert Maxwell did at sea next to Italy (7) 22. Gold and sulphur can, when combined, make marque (6) 24. Pet animal dropping on the 2nd of June – swirling flies gather about (5,5) 25. It was sometimes above six deliveries (4) 26. Female person with bizarre hat and figure-hugging dress (6) 27. The Stones old and new: sexy characters! (6) Down 1. Invite to parley with tea and turnover (cheese) (7) 2. Firm is old – needs redevelopment (5) 3. Production of relish is concerning Levin? Possibly (5,2) 5. Organisation with unusual name: PEN (7) 6. Circumvent tea break in such as Eden Park (3,6) 7. We hear they don’t eat quiche: members of life-saving teams (7) 10. Rook settles on Pinot variety here by the sea (11) 14. Some day the Spanish set fire to the heart of Barcelona – such TV coverage needed (9) 17. Rex, being on course, beams (7) 18. Composition by Barber is musical, abridged (7) 19. Where past Henderson you see actress in (7) 20. The Maori King, being embraced by Ms Lane, lingers a while! (7) 23. Indian in Oxford University features in big hit (5) 28/10 Down 1. One of the planets (4) 2. A meal (6) 4. Water from the sky (4) 5. Ninety less ten (6) 6. Going very quickly (7) 9. Less dirty (7) 11. Cup and __ (6) 12. Small trees (6) 14. A nipping sea creature (4) 15. Twirl around (4)