1: Make new plan for back pasture (9)

5: Head of the Venetians bagging dead duck (5)

6: Polygraph unexpectedly traps vandal (3)

8: As in 'Lee goes back to the drawing board' (5)

9: Aliens set off (3)

10: Bloomer made by member of string quartet (5)

12: Dairy stock entails wrangling around 2000 (9)

1: Mr Stewart on the staff (3)

2: Name successor in speech? (7)

3: Three kernels of copper-yellow grain (3)

4: German painter in a southern state (5)

6: Last offer (4,3)

7: Pitchers were transported south (5)

10: I've lost struggle (3)

11: It comes to a point everyone heard (3)