Across
1 Head of monastery's boat crashed with Bishop on board (5)
4 Welsh resort where everything reversed and odd nun gets confused (9)
9 Bloom growing less quickly restricts fun somehow (9)
10 Motorway included in illuminated speed restriction (5)
11 The ultimate in bliss, an experience that has man entering to receive salvation finally (7,6)
14 One singer with tenor replaced by soprano as well (4)
15 Agent in favour of vicar's assistant cut old rector (10)
18 Choir gets confused with a New Testament primarily in Greek (10)
19 King of Israel rebuilding a section of Jerusalem (4)
21 Reporter taking care of bishop, very sad to lose leader (13)
24 Young dog beginning to whine needs assistance (5)
25 Image-worshippers active in bizarre old rites (9)
27 'Ye are spies; to see the ______ of the land ye are come' (Genesis 42:9, AV) (9)
28 Bridge taxes require a pound in narrow opening to go over (5)

Down
1 Fool upset saint over church aid (10)
2 Don't allow king to leave farm building (3)
3 Aptitude for making money in the Bible (6)
4 Chapel in a valley perhaps, having minimal ritual? (3,6)
5 Australian and Hellene mostly get on together (5)
6 Consignment from French servants in uniform (8)
7 Display given by devils - unusual treat (11)
8 Curse old battered hat (4)
12 Celt's very strange work, not half, as parish record-keeper (6,5)
13 Upholders of bishops confused last priest (10)
16 More than one winner in a comp. has to be unusual (9)
17 Brave rector in lukewarm circles (8)
20 A tiny inferior insect (6)
22 Former French island for one who is banished (5)
23 Elegant bird was swimming north (4)
26 What swims around bottom of boat, not top (3)

Last week's solution