1: Ask for bit of bread with melted cheese (7)
4: Coral Sea, perhaps, without a fish (7)
8: Reformed drinker helps a water distributor (9,4)
9: Do any letters appear after number 12? (7)
10: The portrayal of things as they are in Mailer's novel (7)
12: Sort of uninitiated cheat (3)
13: Anchors in peat bogs (5)
15: Technique for picking up new material? (5)
16: Draw epee, gutlessly capturing noble Frenchman (5)
18: Airship loose after opening bombardment (5)
20: Mediterranean leaves unfashionable coins? (3)
21: Told a whopper; admit rest (3,4)
23: Short measure and light weight, say (7)
25: Then, one crisis ends after call is for healthy exercises (13)
27: Up in grassy area around Kentucky (7)
28: It administers medicine to a clumsy one (7)