Cryptic crossword No 3,860

Across

1. Clear method without separate internal places (4-4)
2. One number - six five zero - is related to a living organism (2,4)
3. Trebles belonging to an individual (4)
4. Flipping crap ring! (4)
5. Opening leads of Ipswich never turn ringers on (5)
6. Ring Pudsey with extraordinary care? It is like something Wagnerian (8)
7. Small child with essentially poor winter transport (6)
8. Fine about a second horse race (4)
9. Chime with eager constituents (5)
10. Wheels of an unringable three, oak primarily (4)
11. Oscar has the first sign of tinnitus and it is leading to inflammation of the ear (6)
12. Cicero, maybe, is attracted to second half of trio's choral work (8)
13. Address open lead with speed (5)
14. Stick of crumbly chocolate doesn't come to an end (4)
15. A beginner gets initially to ring between treble and tenor (4)
16. Sir! Go around! (His lead is monstrous) (6)
17. Way to ring Rutland with Ashtead lead head? Neither too quickly nor too slowly (8)

Down

1. Make accessible love cage at university (4,2)
2. Hot lad's composition is tediously familiar (3-3)
3. I hear ringing a pair of bells is an indicator of upward progress (4)
4. Kiln unearthed in Coventry (4)
5. Absolute beginner gets to cover erratically around Ulster, for example (8)
6. Man, possibly, gets noticed only in the second half of Carlisle (4)
7. Tries to go around and have another attempt (5)
8. It's carried around by Jason's ship (5)
9. Eager lot interfered with my other half... (5,3)
10. ...as well as musical-sounding elements (4)
11. Excellent youngster's love for a form of marital arts (6)
12. Three members of choir taken back (4)
13. How a VIP might go around? I'm following after long lead, duck (4)
14. Which work has Original lead ends? (3)
15. Initially ask for restyled curly hairdo (4)
16. Burden paid for by you and me (4)
17. Lubrication ordinarily improved long leads (3)
18. Final stage of metamorphosis? Aim to come around and start ringing! (5)
19. Completely swallowed by Dorothy's dog? (2,4)