ACROSS
1 and 5 No yellow? One shouldn’t stop so! (7,7)
9 Sales decoration of old? (John’s country relative had one, in other words.) (7)
10 An old-time lover, possibly remembered for his slips. (7)
11 He was bound to take his turn. (5)
12, 15 and 27 down A vampire might be with a vengeance. (3,3,5)
13 Both on guard, to show what might fasten things inside. (5)
14 Nude film, without exceptional beginning, might make you attentive.(7)
16 What might be worn? Look in the transport. (7)
18 A short time with nothing having the spirit of propriety. (7)
21 The glove one carries has to be casual. (3-4)
24 Extort, to be precise. (5)
26 See 17 down
27 Might it make a philosopher rasher? (5)
28 Split-shingle might be basic. (7)
29 Change speed on foot, marked by signs of stress. (7)
30 A plotter might have them. (7)
31 See 1 down
DOWN
1 and 31 across Bill (and one associated with a waggish following) for college? (7,3,4)
2 Stretched to the limit, you’ll have it. (7)
3 Pertaining to decimal, frequently? (5)
4 Could be a liter of extract from clover, perhaps. (7)
5 It may be outdated, but Shaw made it associated with Monday once. (7)
6 A rod or a perch might be used for it. (5)
7 False guise no one might associate with a burning cause. (7)
8 There’s a lot of idle talk about what’s in vogue for the protection of cars. (7)
15 See 12 across
17, 26< /strong> and 18 down One way to approach pool? People lose their cool this way. (3,3,4,3)
19 Makes the note silver, perhaps; some ringers make them. (7)
20 Is just like lighters, perhaps. (7)
21 In the main, it’s endlessly 18 down. (4,3)
22 A song about someone who is no gentleman, but the setting is simple. (7)
23 In a manner impenetrably stupid. (7)
25 Not a thick string, but only one with an obsession has it. (5)
27 See 12 across
