CRYPTIC CROSSWORD

▶ Across

7. Makes jolly certain one is an efficient nurse (5,4,4)

8. Spinning spider presented a problem, being in favour ahead (11)

12. Certain of upsetting me, one will take it up again (6)

14. He will gather first and last of the people in the rear (6)

16. Was doing exam with anger at the humorous writing (6)

18. Gazed narrow-eyed at profound reversal, having reentered (6)

19. Lower House has seen changes as to native intelligence (6,5)

23. Guide nobleman around an ambiguity (6,7)

Down

1. Keep finding fault with fish (4) 2. Where I'm standing, girl's come to the end of the line (4)

3. Inflame fool in India say on return (6) 4. One may be on the beat among one's loose change (6) 5. Four decked by winning services (4) 6. Used last of bait with angling equipment, and used feet (4)

9. Schoolmaster is up to going both ways with rice dish (7)

10. Those who know of former spouse’s impudent son (7)

11. Note to free one from a framework of bars (4)

12. Over-hasty symptom of measles diagnosed (4)

13. Impair a planet, endlessly (3)

15. Part of a needle that's not metal? (3) 17. Didn't stay to get married, then? (6) 18. To take a close look around the street will be a nuisance (6)

19. Fiddle the books – and be grilled about it? (4)

20. Old schoolfellow involved in writing one swarms over (4)

21. Not any replacement of one for nothing but a number (4)

22. Having raised the stake, this may erupt (4)