4  Buy influence (8)

 9  Clear passage to get last of coal in valley (6)

10 Where top college admits whites, primarily (8)

12 This could be enjoyed with sauce on? (8)

13 Writer pens short piece about life (6)

15/24/19D             Forlorn hope from the taxman, as wished once a year? (4,5,7)

16 Moves mountains behind one's back (10)

19 Doctor grins at one making sympathetic noises (10)

20 Girl who's round the bend? Yes, round the bend (4)

23 Ring from another foreign capital (6)

25 State overthrown, besieged by force of Napeolon, possibly (8)

27 One-third of prisoners cited in judge's suspended sentence (8)

28 Borough: "functional, lacking merest hint of romance" (6)

29 Bye, perhaps leg, by Lara? Opener's dismissed (8)

30 Pipe band's audition made unpleasant noises (6)

 1  "Butter's under a dollar": it could make the front cover (7)

 2  Old centre for flora, out in the sticks (9)

 3  25 March? It's the same length (6)

 5  Partially shut a health centre for Mormons (4)

 6  Type of weapon Michael Caine originally shot (8)

 7  Float about in the air (5)

 8  Maastricht's outcome leads to nationalist fudging, such ineffectual people! (7)

11 Age of consent raised, with outlet to get protection (7)

14 Woman getting on piano -- flipping amateur! (7)

17 What Newton discovered about little girl's pregnancy (9)

18 Crazy Ivan's taking charge of forced entry (8)

19 See 15 Across

21 Snowed under, having sled stolen? (7)

22 Personal recollection of first person in the sea at Normandy? (6)

24 See 15 Across

26 Completed deliveries in reverse order (4)