Cryptic crossword No 3,842

Across

1. Sitcom with nerds, if rewritten (7)
2. Love rival Pesci grabs the French nationalist (6)
3. Tiny edit changed name (8)
4. I am quitting Shakespeare for something significant to read (4)
5. See 29a
6. Extremely architectural Wonderbra? Yes, every time (6)
7. Royal dignity in question, observed cycling (cool!) (9)
8. Company, local one, have a go at Georgia? (7)
9. Cheek kiss interrupted by joiner, 22 (4,3,4)
10. Legendary singer of 'western' song? (5,6)
11. I wholeheartedly agree with independent US Today writer, surprisingly (3,4,2)
12. Case of dainty lady heading away - in retrospect, a real go-getter (6)
13. Situation at start of game is "left", not "right", generally speaking (4-3)
14. Winner picked by this milkman (5)
15. See 32a
16. Each bishop in Gabon succeeded getting jewellery (8)

Down

1. Look at scratched paintwork, surface removed (3)
2. Square number, two-thirds of six! (4)
3. Worry when wife is in the saddle? (5)
4. Axes style of art and dance music (6)
5. Song about drowned valley (3)
6. Authority's oddly shady standing order (3-2)
7. Votes in American Samoa, parliamentary elections finally (4)
8. 3 frustrated about university, it's boring (5)
9. Daily opportunity for reflection (6)
10. Be brave, I punch out (4,2)
11. Manager not quite accepting fine for accounts (5)
12. Deal perhaps cut in court (3)
13. Kind, jaunty person to some degree (4)
14. Knotty disagreement with Dutch gangster (5)
15. Duck cooked, I prepare sandwiches (3)
16. Done with chores at last, a load of balls (5)
17. New role encompassing sex appeal? Hang about...! (6)
18. Tanker in Loire damaged (5)
19. Two journalists covering clergyman essentially moved slowly (5)
20. Cardinal Henri's supporting female (4)