Cryptic crossword

ACROSS

1. Study the paper pattern and think about it (11)

8. Stage performer roughly backing to the right (5)

9. Struggle that may show who will defect first (3,4)

10. Produced young and got included as marked (7)

11. Richard the First getting awards for clothing (5)

12. They enable one to draw lines of kings and queens (6)

14. Strange way to quote inclusion of animal when reversing (6)

18. Grasp fifty who are in tented accommodation (5)

19. Used to a race with a French newspaper boss (7)

21. Vehicle cleaner takes one back to (7)

23. Bottle of hydrogen given to one chum takes in (5)

24. Rattles one with a girl’s musical entertainments (11)

DOWN

1. Poor actor to be in the credit, if there’s room (7)

2. Two things tennis players use of a different game (7)

3. Was wrong to express hesitation to a revolutionary (5)

4. Take off the staff involved in wages (6)

5. Sheep disease gave hart an upset with unknown quantity (7)

6. Bend ear: it takes an age to do so (3)

7. Urge a part of the media? (5)

13. Answers the traveller with falsehoods (7)

15. Granite has more of a flavour, perhaps, in Africa (7)

16. Embraces fifty CDs due to be put out (7)

17. It shows one had the needle with army display (6)

18. Hidden store is of money, one hears (5)

20. Is at the head, and in charge of what’s to be discussed (5)

22. Compute sum of Anno Domini 500 (3)