1: Makes empty noises behind listener. (5)
4: Some slippers and also shoes (7)
9: Remodeled place is distinctive (7)
10: D*** petrol pump sample? (7)
11: Refusals thwarted goons (2-3)
12: English poet holding us responsible for hold-up? (9)
14: Ball-horses are travellers! (5-8)
18: Does not see the advertisement because it is in the wrong section. (13)
19: Note old fashioned opening with 2.54 cm bird (9)
22: It's big where some Ambassadors are at? (5)
23: Lion-hearted ruler is free after getting burn (7)
25: Heroin's prepared approaching land (7)
26: Extend a term of imprisonment (7)
27: One with no trust in decency, niceness, etc. (5)