6  Planes about to turn around somewhere in South America (6)

 9  Novel a Frenchwoman read back-to-front (4)

10 Is art's rule broken by this person? (10)

11 Possessions of a crew taken aboard ship (6)

12 Detective probes lecherous churchman (8)

14 Theatrical cast insist choir gets rid of soprano (10)

16 Skilled mariner drained lake (4)

18 Dirt in dining room (4)

19 Student starts on art project, picking roses to draw (10)

21 Working after boss blocks dismal strike (8)

23 English force approaching stronghold gets shot (6)

25 Small creature dog found behind well (10)

27 Have a high opinion of judge (4)

28 Woman has boats on small UK river (6)

29 Oddly this butter is used primarily in dessert (8)

 2  Peace in Crimea - it's unstable (9)

 3  Seafarer whose progress was recorded at end of day (5)

 4  Two mammals one knight had to kill (11)

 5  Person from an era with Crusades disembowelled in battle (7)

 6  Extra purchase picked up (3)

 7  Girl started, without vehicle, to travel for fun (9)

 8  Scientist helping to build postgraduate's laboratory (5)

13 Wealthy man to unnerve earl then bring down queen (11)

15 Practice cricket shot following match (4,5)

17 Fine material twists, tears, and rips (9)

20 Writer gets father's books in exchange for jewellery (7)

22 Break leg, hand, and foot on ice (5)

24 A place where you talk loudly over something to drink (5)

26 Alcohol once more avoided by teetotallers? (3)