Across
1 Family doctor, popular person who’s most important (7)
5 Own son breaking model steamship (7)
9 Pioneer prepared to accept very soft pizza topping (9)
10 Letter for example retained by old mother (5)
11 Service, apart from last quarter, all the same (4,2)
12 Start moving occasion with procedure to establish attendance (4,4)
14 One demanding power in wild talk for once receiving resistance (7,5)
17 Pompous person, with material beginning to expose scandal, keeping quiet (7,5)
20 Substandard data about terrain omitting odd features? Right (8)
21 Man felt free from boundaries in place of worship (6)
23 Once more in Narnia, gather round (5)
24 Profanity? Wise to restrain cold anger (9)
25 Be revolutionary in speculation, losing nothing as a result of that (7)
26 Break line between west and east in struggle (7)
Down
1 Captain releasing small fish (6)
2 Relative conclusions of Einstein accurate? What a relief (6)
3 Singular fraud upset arbiter in attendance for meeting with journalists (5,10)
4 Retreat certainly not all right (4)
5 Playing solo, hippy capturing hearts with outlook (10)
6 Having many options impaired intensity, group of singers mostly admitted (6,3,6)
7 Ecstatic about electronic volume being raised (8)
8 Note king in decline after start of scene in ballet (4,4)
13 Poor soul consumed by duty is working diligently (10)
15 Candidate with dodgy past going round nation (8)
16 Franchise hurt, losing energy over time (8)
18 Scoff after United lead, being optimistic (6)
19 Run away from church and cheat (6)
22 Boat in sea initially north of Guernsey? (4)
