Cryptic crossword No 2,828

Across

1. Joined police (3)
2. Mexican food you shouldn't have to cook, oddly (4)
3. Spellbound daughter: I've teddy bears! (7)
4. Relaxing on vacation, somewhere with palm trees (6)
5. Extreme sport enthusiast making kids very excited (8)
6. Edit communist newspaper containing provocateur's right-wing article (7)
7. Coming from Inishmore, perhaps a little paranoid? (4)
8. It ... it turns white! (4)
9. Beloved French singer (4)
10. Runner beans, leek and broccoli at last (3)
11. Good boots to wear in London Marathon (4)
12. Aussie icon Kylie's first disc featuring a theatrical organ (8)
13. Farage regularly perceived to possess face of one? (4)
14. Essentially, parents given last word about medical procedure (5)
15. Strike back against American soldier (4)
16. Chuck luggage in rear, finally secure ... with this? (6)
17. Spell check headings to avoid ridiculous mistakes (5)
18. Flipping hard to leave, originally reluctant (4)

Down

1. By way of 6a (3)
2. Maybe Grayson Perry's wife purchases house in Dallas? (2,4)
3. Immoral support? (4)
4. Fireman cross over short annual holiday (4)
5. Decorator ultimately feeling funny about extremely rare shade (5,5)
6. Still believe, at heart, in mythical creature (4)
7. Fashionable brother introduces father to Google (4)
8. Gunman occasionally weak with worry (4)
9. Top Geordie comprehensive reportedly, pet (10)
10. Made out boats' bows (4)
11. Preposterous part for Kate Winslet: Grasshopper (4)
12. Renowned sporting body overseeing sumo wrestling (6)
13. Coffee-maker's broken – free tea and cookies instead, initially (9)
14. Shaved brownish-orange beard (3)
15. Plug for mobile phone's core component (5)
16. Insect to get away, escaping from trap (4)
17. Actor familiarly appearing in shimmery lingerie (5)
18. More hazy or washed out, one assumes (9)