Cryptic crossword

ACROSS

1. Wish to see doctor? One might! (6)

4. How quietly turtles spit with rage (8)

9. An easy walk will sort out all who lose their head (6)

10. Words splashed on columns (8)

12. There’s no blame to its being nice once about the North (9) 13. A rascal may have the urge to conceal nothing (5) 14. Interference with vine in rotten mess (12)

18. Contests for tips: income to be arranged (12)

21. Say one will be in harmony (5)

22. It’s not necessary to come across such a bad olive (9) 24. Abundant crop I produce if about fifty (8)

25. N.b: in PE, this was the point put to paper (3,3)

26. Housing loan of a groat Meg took out (8)

27. 24 hours for a man to be helpful (6)

DOWN

1. To discourage one, I’d turn up with a ghost (8)

2. Yet siren could indicate a state of calm (8)

3. Something left (left in rice, perhaps) (5)

5. How it’s shown to be a talk with pictures (12)

6. Primer may show where pullover is worn (9)

7. Stab of pain? Have a wet with gin, perhaps (6)

8. Free ferryman for holding a midshipman (6) 11. In laundry, peg is used that’s not over-stating it (12) 15. A fresh start after a lock-out, say (9)

16. Was put together with bond mice made (8)

17. School get-together one may bless like this (8)

19. Mum put her paw out for the bead-money (6) 20. It sounds more difficult in the heat of passion (6) 23. Gloomy doctor gives one a hearing (5)