CRYPTIC CROSSWORD

Across

1. A puzzling picture concerning public transport (5)

4. Sailor at first light almost gets the bird (7)

8. Once cat turns to the country, a series of links is formed (13)

10. Article given to me as a subject to develop (5)

11. Such rations as the emergency may require (4)

12. A tie-up that may be a bit of a nuisance (4)

16. Might aim to leave an insect in its perfect state (5)

17. Precise branches of knowledge are the mathematical ones (5,8)

19. One who is learned, or one who is learning... (7)

20. ... from him maybe, having time to tour around (5)

Down

1. Ability to take them in, ever since pets were put out (13)

2. Bachelor is at home to his wine store (3)

3. Rough hut may be noted by sailors (6)

4. In France I, a broken reed, am scoffed at (6)

5. A coward offering first crumb to a bird (6)

6. It’s wild, dining out without one dying away (9)

7. Display expert dummies may be suited by (6,7)

9. A laggard is not quick to get a 20 (9)

13. By which one may be shot out of hand (6)

14. Foreign sailor may be a rascal in disguise (6)

15. Game shelter is finished in Connecticut (6)

18. Stop filming and divide the pack (3)