2: Some doctors oust head of Johnson and Johnson? (9)
3: Highway functions well until these are encountered? (9)
4: Seize broadcast mogul (7)
5: Southeastern Greek Island harbor (7)
6: Revolves around a star. (3)
7: The world's broken heart (5)
8: Healers swear by the cases of the little river horse. (11)
11: Boob implant cups: sad hoax in line with 15-down (8,3)
14: Giving up silly run, Reds tack on a couple of errors (9)
15: Sigh in the midst of plain neglect (9)
17: This sort of salad vegetable is found mostly below the surface. (7)
18: Make a point with writer following return of Cheers (7)
19: Accidentally unsex group with ties (5)
21: One may be transported by this kiss, it's said (3)
23: Oxygen is pretty amusing. (3)