Cryptic crossword No 4,022

Across

1. Start dealing with odd parts of Ghent (downtown quarter avoided) (3,4,2)
2. Expanding tube that plugs damaged tents (5)
3. Doctor US badge with odd fit in the middle which lines up holes (8)
4. 2, 4, 6, 8, 0: all the same (4,2)
5. Correct straight line in effects (3)
6. "Here's Jesus!": Church of England, after looking in the mirror (queer without 9d) (4,4)
7. Peacekeepers dithering when rustic (6)
8. Bury Ida in Twin Lakes from lowest to highest, Mark (10)
9. Sounds like terrible exhibition for an Eastern dog (7)
10. Naughty kid from Slovakian city (4)
11. Botched hack in engaged (sort of) return (10)
12. Do-do shuffle at cove (6)
13. Italian topping (average by other names) (8)
14. Work horse is sassy at heart (3)
15. Endangered star missing two points (2,4)
16. Messed up shot wins where land is unstable (3,5)
17. Change of key in weird Aussie bog (5)
18. Practice for Operation Big Book... Go! (9)

Down

1. Little coin trickster somewhat loving the West (11)
2. Distinguishing (odd one) post without street (15)
3. Clean fall (7)
4. With ten players, cricket team (one player down) stands by crease (7)
5. Jews' cone topples. "He-he!" Funny (3,6,6)
6. Note enshrouded in national security is not publicly available (3)
7. Gender (common without religious dressing) is about genitalia (6)
8. Clumsily threw item at what's in the brain (5,6)
9. Short cold brewed saké is bad luck (6)
10. Gets cross where confession is taken (3,4)
11. Shakespearean survivor's exclamation taken back, with more negative than positive responses on X (7)
12. See 17a