Cryptic crossword No 2,599

Across

1. Look back on special stays (5)
2. Glastonbury, say, hosts upper-class jaunt (4)
3. Strangely oriental connection (8)
4. Faculties holding onto 500 pounds (7)
5. Cockney's leadership position in plant (3)
6. Ocean predators pay attention with boat circling (6)
7. Continuously working saint tucking into new work (3-4)
8. Trump's latest resolution is on the way (7)
9. No, I can't go without first dithering, displaying this? (8)
10. Credit institute has politician muted, not taking sides (6)
11. Nanny from America embraced by King and Queen (5)
12. Birds, weak without wings in place (7)
13. Clothing line behind 'three-quarter length' patent (7)
14. Soldiers from Australia run military's flanks (4)
15. Indian city's never-ending series disrupted by English nationalists (7)
16. Sick wife leaving last wishes (3)

Down

1. Somehow, Elvis isn't dead (5)
2. Conservative Lord brought up rogue (5)
3. Clips from Ruby, say, on the radio (6)
4. South Asian dish is fake, ripping off New York (3)
5. Be offended by broadcast again (6)
6. Repair and re-use submarine (8)
7. Egg on the face of Isaac Newton over evidence (6)
8. Wind hit crop of food (7)
9. What comes after 30a, 13a, 18d, 15a, 12d, and 26d - and what comes next? (4)
10. How things are normally done in sumo shows (3)
11. Pop star featuring in Ryanair advert making a comeback (6)
12. Bulges with elevated pressure - testicles? (5)
13. Special effect's basic and regularly ditched (3,3)
14. Girl's name loved in Virgin Islands, primarily (4)
15. Stir up English department in a frenzy, resulting in less learned (8)
16. Ebert essentially pans creatures in Star Wars (5)
17. Buff setter has good skill in football (6)
18. Might author acquiring books cry when writing's lacking? (7)