Across
1. Monk in confinement is into quiet time (8)
5. Cures need to be arranged before world finally doomed (6)
10ac,3dn. New policy took root, just lacking one key 6 12 treaty (5 8)
11. Radical claims destruction of material in labs (9)
12. see 6 down
13. A terrible crime: a rich nation failing to embrace 10 3 (7)
14. Maligned dad home, but moving (10)
16. Direction of Earth ... one way? (4)
18. Need change, as 16 from here is the "land of nod"! (4)
20ac,25dn. Suffering eases & hunger goes as 11 helping industry (but upsetting 23 28) (10 5)
23. Conditions of taking social leadership: smile, act fake (7)
24. Battle with dynasty heating up! (7)
26. Aim expressed in two points? We need less of these! (9)
27. No ecstasy-inspired revolutionary fools? (5)
28. Organisation of messy arrangement taking time (6)
29. Heartlessly strange remarks, as those living in such spots are threatend by global 24 (8)