Cryptic crossword

ACROSS

1. Most of the division is worth saving (6)

4. Pushes out doubters in an agitated state (8)

9 & 26 Down. A thing secured by breaststroke competitor at pool initially? (7,3)

11. Social worker hacked into computer system connected to a foreign plant (7)

12. Hear broadcast containing programmes primarily with one? (8)

13. Last section of this knotted cedar is petrified (6)

16. Elastic polymer, moulded on ice, is penetrated by long match (8,6)

19. PC LAN item reconfigured in a stylish computer (5,9)

21. Large quantity of uncooked and prepared food is vegetable (6)

22. Irish flier scrambled after a shooter (3,5)

25. Front part of coconut oil can, strangely, is pointed (7)

27. Felon, not restricted by appealing, is to speak out publicly? (7)

28. Extensive sufferer’s initial outpouring of grief (8)

29. Change one’s opinion about large loaf (6)

DOWN

1. See 23

2. Run out to bowler’s final spinner (5)

3. Levity affected night-life on vessel (11)

5. Dance song lacking commercial content (4)

6. Standing down, king moved quickly (3)

7. Blasts financial support raised by ethnic groups (9)

8. Says bad things about Polynesians, perhaps, without leader (8)

10. Boats in Venice leave land so polluted (8)

14. One who uses numbers to stop record of cheque (11)

15. Drug demand curtailed in store (8)

17. Resistance that is holding PM up on a social occasion (9)

18. Prohibit wine storage units in soldiers’ building (8) 20. Cut last piece of tombstone for grave (6)

23 & 1. Fellow distributed all but diet pill that increases the flow of urine (5,6)

24. Detailed design left in lavatory bowl (4)

26. See 9 Across