8  One job of one is to appoint one – can’t be confused about one (7)

 9  Brewed drink twice in front of upper-class country house (7)

11 Being one mingling with ten execs in disarray (9)

12 When Hertfordshire opener and tail ender start to see trophy (5)

13 Dig up old philosopher (6)

15 Not much to pay one with stomach-churning acne (8)

18 Back of flat cap, say – expensive French one (8)

20 Fight doctor in Ulster? (6)

23 Who’s worshipped part of returning Paschal Lamb (5)

25 14th-century classic from one embracing Europe (9)

27 3 or 18, say – one leaving Dutch Guiana (7)

28/24     Macbeth’s hillock where one’s found behind broken slab (7,5)

29 Aha! bet it’s flustered one at the same time (2,4,2,2,3)

 2  Lousy books one set in a hurry (7)

 3  Artist working in the police (5)

 4  Rising _µ! (6)

 5  Arrest the Spanish in charge of silvery metal (8)

 6  Something like a ladder between Tosca and La Boheme in Milanese venue (5)

 7  Butler’s work before new question’s introduced (7)

 8  Bona fides of one under king Charles, supported by ridiculous A-list (11)

10 We needn’t use concoction without sugar (11)

14 Non-PC coat (3)

16 It can link to tat, and gen as well (3)

17 Fitting in car seat he’d adjusted to be about right (4,4)

19 Free feature of email address, shown at 72pt? (2,5)

21 Black attire made specially for a priest (7)

22 They’re worn for deep probing of raw recruit in the commandos (6)

24 See 28 Across

26 How jungle presenter might introduce himself to Tarzan’s intended (5)