Cryptic crossword No 3,870

Across

1. Fellow that is exceptionally kind (8)
2. Trouble caused by forward leads to Botswana Rugby Union getting upset (7)
3. Elected official lacks force - in legal terms, it's concerning (2,2)
4. Cross about being knocked back, becoming increasingly profane (7)
5. One area of bishop's work largely constrains Podger's foolish actions (8)
6. Seasoning of hot dog possibly being abandoned by America (4)
7. Balk at contraceptive device after bible classes (6)
8. Girl occasionally feels crushed by chest pain (8)
9. Magistrate gives up golf, needing surgery for bones (9)
10. Might banker twerk naked? (5)
11. Chunter on about small club (9)
12. A thousand Chinese people, a Scotsman and an African (8)
13. Doctor's fourth mistake creates panic (6)
14. Creep! Rat! (5)

Down

1. Create new version of trendy flat discovered in Split (8)
2. Get into the mind of student after disorderly sit-in (6)
3. Mark and John cycling in Cancun on vacation (5)
4. Food colouring in chicken dinner, not starter (9)
5. Statesman initially orders a negroni cocktail (9)
6. A standard part of governing is never u-turning (6)
7. British Museum donor returns to claim bit of gold - bother! (6)
8. Darko Pancev finally developed into a prolific scorer (6)
9. New Zealander headed local tribe (3)
10. Hack is extremely sour about the First Lady (5)
11. Go round California with old painter (7)
12. English bishop reveals sin (3)
13. International call consumes the majority of one evening (7)
14. Struggling in French, you succeeded with support (8)
15. Revolutionary Renault with a new lubrication device (6)
16. Shrapnel found in ship including stern (6)