The perimeter announces a forthcoming event.

Across
5 Find company in one church minister and another one (6)
6 Armenian Catholicos sneers when put off (6)
9 Monarch engrossed in thinking, learning (4,4)
10 Places for clergy and choir high in stature between saints (6)
11 Catch partner almost making comeback (6)
12 Least attractive form of dieting containing a trace of saccharin (8)
13 Moral men cut out for eminence in Israel (5,6)
18 Motets as rendered nearest the altar? (8)
20 Seafood starters with shrimps, cockles and mussels, prawns included (6)
22 You and I make steady progess revealing source of serious decay (3,3)
23 Girl, a comic, set about Japanese stage director (8)
24 Wanderer reels over having swallowed drug and evil spirit (6)
25 Way beams of light may reveal lost sheep (6)

Down
1 One begging amazing grace with a hint of desperation (6)
2 Plain soup men dished out after closure of Sabbath (8)
3 A boy pursuing Religious Education shows purpose (6)
4 Dreadful elitism restricts a religious believer (8)
5 Thinks fit Europeans should be given a hearing (6)
7 Sadly hapless, lacking energy, creating hardly anything (6)
8 Getting rid of one in a tragic end possibly (11)
14 Our edict, being unreasonable, may be shouted down (8)
15 Drunken tsarina imbibes last of vintage Greek white wine (8)
16 Last bit of brief agenda (3,3)
17 Gives life to relatively unimportant man on board (6)
19 Old tax brought by French king after 30 days (6)
21 A succession of three letters you get with an Asian language (6)

Last week's solution