4  Various articles about popular revolutionary; Plato, say (8)

 9  Alien tracking asteroid in spacecraft (6)

10 City’s large Greek amphitheatre originally maintained by venerable fellow (8)

12 Stole from maiden with tattoos (4)

13 A second layer is greyish-white (5)

14 Little boy’s initially worried sick (4)

17 Clans even managed to capture retreating enemy’s queen (4,2,6)

20 Ordering doubles with a sago pudding (5,7)

23 Greek character takes centre stage in chariot arena (4)

24 Notes resistance to renewable source of energy (5)

25 Set a limit on electronic cloaking device (4)

28 Scrupulous journalist opposed to hacking into computer (8)

29 Temple father is filled with a divine presence (6)

30 Sprawling tree; it’s stood in New York for a long time (8)

31 Argument young lady scoffed at (6)

 1  Book I penned in French, I set in exotic harem (8)

 2/6  Rotters eating barbarian for breakfast (5,3,4)

 3  Livestock rounded up in Egyptian exodus (4)

 5  Steve has seen troubled parts of planet (3,5,4)

 6  See 2

 7  Setter abandons American style of writing (6)

 8  Depend on the French to be provocative (6)

11 Mental health visitor confused school with pigsty (12)

15 Butts of swords (5)

16 Popular symbol of London has died out – it’s a puzzle! (5)

18 Soldier guarding Scottish Island reflected sense of foreboding (8)

19 Influence of party mounting over period of time (8)

21 Faint uneven pulse is a fairly common feature (6)

22 Filling fare, say, Dorothy’s served up (6)

26 Presently unknown (4)

27 Posh girl on ecstasy gets violent wind (4)