1: Apartment behind English school reflective place to write (7)
5: Forgetful of cinemas craft (7)
10: Surrounded by grass, loose and laid-back (7)
11: More extensive extra, right? (5)
12: The man with lack of skill shows cruelty (13)
13: Throw a fit as ice is tossed in shower (5,4)
15: Mature writer beyond racy, impertinent introductions (5)
18: Conservative interrupting nobody for the time being (5)
20: Deviant fellow following Esther Williams at times (9)
23: Finish suddenly, like an oboe? (1, 4, 2, 3, 3)
25: Dizzy Ben is a playwright (5)
26: Worker in new data capture firm (7)
27: Prepare the blocks for a run, perhaps (7)
28: Made certain condemned is guillotined (7)