Across

1 Having the means to split dry slab (6)

4 Crazy things providing entertainment at Christmas (8)

10 Complain after convert’s announced where people may kneel for communion (5,4)

11 Rule from abroad after leading couple depart (5)

12 Short walk by female Christian martyr (7)

13 Choral work penned by communicant at abbey (7)

14 Heathen silver accepted by Greek god (5)

16 British fleet carrying three queasy fellow monks? (8)

19 Threnodists, for example, included in English catalogues (8)

21 Hoped to change surplice (5)

23 Again negotiate withdrawal (7)

25 Losing heart, elegize sadly about king’s prophet (7)

27 Arab wearing sack — something seen on Aaron? (5)

28 Follower of misleading prophet having a wild time beside Welsh lake (9)

29 Fools welcoming anonymous saint draw straws? (4,4)

30 Black cab, returning, entering confines of Amesbury  Convent? (6)

Down

1 Byzantine patterns in part of church (8)

2 Wash a lot of bed covers at hospital (5)

3 Last of cave paintings, etc., on layer made of clay (7)

5 Cleric cut and refurbished memorial of saint (5)

6 Ancient city church concealing gold interior (7)

7 Priest, a Hebrew character, protecting unknown former queen (9)

8 Dean originally always supporting Star newspaper (6)

9 Tavern outlaw upset American Christian missionary (8)

15 Against carelessly including US city in book (9)

17 Levanter, perhaps, extremely lively after Spring festival (8)

18 True lady abandoned unfaithfulness (8)

20 Remarkable legend about river monster slain by Beowulf (7)

21 Happen to catch man and wife lifting poor man’s only possession (3,4)

22 Semitic language account covering heartless religious leader (6)

24 Apocryphal book originally typifying commemoration of a death (5)

26 Spanish island business secured by insurance agent, initially (5)

Last week's solution