1: 30-across Locality of drama and current progress (5,2,4)
5: Crook skimmed cash register? (3)
7: Startled, grabs sailor (3)
9: Certain European in age-worn convertible (9)
10: Accidentally unsex group with ties (5)
11: Tar mess contaminated rivers (7)
13: An orchestra playing with lack of restraint (7)
14: His stable is unstable, it's found (9)
15: Discussed one who broadcasts mistake (5)
17: Great crowd spirit (5)
19: Strange lingo - some new expression (9)
21: G-man covering beat lit up Bic? (7)
22: Resistance to change is smart; it's going back in time (7)
23: Approaches first of nine pieces of corn (5)
24: A notable Jay Leno feature, 'Sensible Dishes' (9)
26: Without it, set call for recompense (3)
27: Pronounced ability to smell negative votes (3)
28: Rule violater alarming teacher (7)