Across

1 After church, came across first trace of engraved lines in burial-ground (8)

5 Tensing and Hillary taking anti-colonialist to heart (6)

9 Confess to losing front from academic dress (3)

10 Bishop tells porkies about viper he captured before start of mass — not the holiest of utterances! (11)

12 Previous partner and detective run to a politician experiencing loss of breath (10)

13 Beast spotted in Kigali once? (4)

15 Playing smoothly, cricket side leads a tour that excludes ancient city (6)

16 Book group now disbanded (7)

18 Algeria abandoned royal insignia (7)

20 Bloomers increase in price in outskirts of Inverness (6)

23 Secret diamonds located beside ancient vessel (4)

24 Maoist clan reformed in solitary (10)

26 Private family dines out around start of term before heading for Eton (11)

27 You reported tree found in 1ac (3)

28 Speak obscurely and irritate theologian at heart (6)

29 International body’s worthless articles edited but not made public (8)

Down

1 Clerical collar worn too tightly? (6)

2 Chap conceals small Scotch in vestment (7)

3 A celebrant damaged receptacle for the pyx (10)

4 Roots apostate cooked? They will accompany Sunday lunch (5,8)

6 The last word from alpha males (4)

7 On the internet, Germany, Italy and Ireland’s supernatural objects of worship (7)

8 Popular hospital estate half lost — mad in the extreme! (8)

11 Wandering around exposition of pioneering art (13)

14 Pouring oil on tent in Oman is out of order (10)

17 Person who maligns City type around University College (8)

19 Decorative crown retrieved from Trafalgar landing-net (7)

21 Create codes in French chapel underground (7)

22 Ran, unhappy to be cornered by FBI man (6)

25 I would love Liberal image — to be worshipped! (4)

Last week's solution