9  "Divine horse" has opposite usage in postscript (7)

10 Tree zap: new circus act (7)

11 Walks haltingly (in reverse, for example), to get a quick look (7)

12 Coarse niceties conceal poison (7)

13 Cut-out contains backwards note, worked out (9)

15 Base eight system used in havoc tally (5)

16 NASA, for one, is bully's accomplice in the morning (7)

19 Puts on clothes and prepares salad (7)

20 Prisoners of Taurus, erstwhile customers (5)

21 A dry thing furiously drinking water (9)

25 Covering unrestrained iron fog (7)

26 Subatomic shell leads to crazy lab riot (7)

28 Fancy horse in a tunic or nightgown (7)

29 Damaged iPhone 10 rises from the ashes (7)

 2  Light within foreign item (6)

 3  Add shallots and potatoes for starters, quickly please! (4)

 4  Orderly rushes theater attendants (6)

 5  Sad trend: randomly grounded (8)

 6  Seated queen copies Asia poorly (10)

 7  True sine problem brings us back together (8)

 8  That demigod? He's cruel, sketchy (8)

14 Small dog in a crimson arrangement (5,5)

16 Hair's age? (8)

17 Discourse, richer to poorer (8)

18 A pig found in lots of hard wood (8)

22 Bends or pods at sea (6)

23 Plan, like camping? (6)

24 Lax in happy star system (6)

27 Explosive prosperity? (4)