Cryptic crossword No 1,976

Across

1. Level possibility, could be Stanley's. (7)
2. Cape Town airport lost first fight, truthful! (7)
3. Make a fool of caricature? (5)
4. Gilbert & Sullivan work about a homed kit (3,6)
5. Executive leader qualification (10)
6. Kilo adrift, God, in Oslo! (4)
7. Perfect! Amazing lesson by a professional (11)
8. Nearly something over the top, secret edition out there (11)
9. Enthusiastic diva turnover (4)
10. Basic actor fell head over heels in action (10)
11. Greenish oxygen suppliers, good for diving (4,5)
12. Autofire rapidly increasing? (5)
13. Everyone else wrapped in hesitant dejection forever (7)
14. Maintain issuant badly (7)

Down

1. Type of quartz found in blood? (6)
2. Reconfigure tenure, reconfigure guitar (6)
3. Reverse in front of pig product in a famous board game (10)
4. Go into a computer key? (5)
5. One who seeks a contract for privileged CIA member (4,5)
6. Popular snack loses, second to blood rival (4)
7. National paper butchered a days out (3,5)
8. Wackiest circular path preceding construction area destroyed (8)
9. Cold coffees affected set dialect (4,6)
10. Casual Zen disrupted by important waterway (4,5)
11. To do: Sing third section of Irish folk song somewhere near Maryland (8)
12. Posture orientation? (8)
13. Fish before tango? (6)
14. Paul Hewson Senior confused with famous playwright (6)
15. A Quiet Place sold out tickets to their reunion? (5)
16. Online group connected ancestrally in Scotland? (4)