1: Startled, grabs sailor (3)
3: Criticise a computer analysis of famous passage (6,5)
9: Path of planet - or particle (5)
11: Decide to find a new answer (7)
12: Duck putting string on ancient peeper (9)
13: Take on popular rascal (5)
14: Lifeblood of dope (3)
16: Massacre gives Serb leader mirth (9)
18: Cast light upon awfully tired aria (9)
19: Begins seeing another divorcee? Deplorable. (3)
20: Scheme conclusion for jet set (5)
21: That may be reversed, but his son sits around pointlessly. (4,2,3)
24: The last movement produces great passion (7)
25: Mineral springs start to moderate involuntary muscular contraction (5)
26: Watering devices found in run-down orange sheds (6, 5)
27: Inflexible yet adjusted (3)