1: Author and actress receiving gold choker, originally (7)
9: Toff aimed to do himself proud. (11)
10: Finished holding second half of tour; it's lasted (7)
12: Drawing, for example, a bit of a cartoon (3)
13: Plan to return with woman (3)
14: Complain about the horse (3)
15: Ever-practical, Mr. Vader keeps own little piggy (4-2-5)
17: Mend a split state (11)
20: Clean oneself, but in reverse (3)
22: Freshen the atmosphere (3)
23: Man, what an avant-garde US artist! (3)
24: Ray's about to remain undisturbed by reflections (7)
25: Stimulant produced as choir paid off (11)
27: Computer screen is OK with time sped up (7)
28: Plots get Cuban revolutionary leader in a terrible mess (7)