4: Broadly-inclusive explanation for Hang Loose heard (4-5)
8: I've lost struggle (3)
9: A properly run lottery might be a complete success (1,5,5)
10: Something good made by dwarf barber, perhaps! (6,7)
13: Two characters together, drunk, hit PhD on the third of August (9)
15: Dull nicks on a car, we hear (5)
16: Policeman extremely sensitive about opportunity (5)
18: Telling of beer jokes brings uproars (9)
20: Mild guess: I die reassembling a nasty weapon (6,7)
23: Check strong drink of 22-acrosss bold alter ego (5,6)
25: Later round without an opponent (3)
26: Revels too bad for former President (9)
27: Relieve an opposition of a low-point (5)