Cryptic crossword No 2,923

Across

1. Settling a civic argument: "Go around!" (14)
2. Water feature fellow removed for debut of Maxine Peak (8)
3. Familiar conductor taking part in matinee "Mikado" (5)
4. A CEO put out: "Go faster!" (7)
5. Tow Tesla to Essex with return to Plymouth, perhaps (8)
6. Back to square one as a result of bum steer (5)
7. Adam grips fashion models (9)
8. Pointless pursuit e.g. showed social disorder (4,5,5)
9. Age about 51, beginning to crumble (5)
10. General on heroin loses his head, takes in novice streetwalker (7)
11. Workers after cuts, with voices raised, possibly (7)
12. So-and-so's Second Amendment issue? (3,2,1,3)
13. Expired baps with crusts removed, else sandwiches get wilted bottom (7)
14. A little Caesar returns back to Earth (5)

Down

1. Arrange a kind of American (5)
2. Cry for help: went Number One inside briefs (7)
3. Saw, heard, mentioned (5)
4. Privateer cunningly ransacked centres of Spaniards, redefined America (7,5)
5. Police go around bashing heads (7)
6. Exposed arc weld, city set on fire again (5)
7. Originally, Germanic outlaws, then "Hallowe'en Siouxsies" (5)
8. Plain Irene gets fixed up (9)
9. Hear a record that sounds like the witches' scene in the Scottish play? (9)
10. "Virgin" wasn't a hit? (9)
11. Perhaps Sarah Ferguson finally, after short review, "I hate that introduction from Andrew" (7)
12. Unbelievable soft drink - it's terribly cold! (9)
13. River, tor, church, restricted area, gap could be part of his work (12)
14. Song and Arias in the book in OT (7)