10 Fine detail of Union between Michigan and Iowa (7)

11 Terpsichorean spinner? (7)

12 See 18

13 Healthy breakfast has organ playing at Californian venue (7)

14 Auntie's boss holds nothing against support for change of direction (6)

16 Pirate, somehow marred, has buried gold (8)

18/12       Abel on the boundary at Lord's? (5,3)

20 Teacher with disgruntled air collecting books (5)

21 French town needs insurance for its bondsmen (8)

23 Wordsworth's daffodils past unlimited herbaceous perennials (6)

24 Hard work for Virginia hiding in shadow (7)

26 The entry-level equipment initially needed for 14 (3)

27 Broadsheet and tabloid liaised haphazardly (7)

28 Swot up about king and knight ending (7)

29 Church meeting for deranged grandees only (7,5)

 2  Undercover agent has hidden message about Japanese leadership (5)

 3  Explanation for a national riot is disturbing (15)

 4  Couple who have faith in East London (4,3,3)

 5  Girl always heading west (4)

 6  Perfumed flower girl from part of Wales (4,2,3,6)

 7  Lazing immature lion is disturbed - it's massively large! (9)

 8  Travel after French friend to see pal over the border (5)

 9  Boat paddle regularly used for force (7)

15 Three person score we hear -- original thinking is needed (10)

17 Surprising extract of marjoram bush in garden (9)

19 Plants Middle-earth's ogres keep concealed (7)

22 Fifth attempt to design old kite (5)

25 Total amount besieging old mission (5)

26 Odd test answer limits ruler (4)