1: Spy on (9)

5: Those passing the first round see getting D's (5)

8: Administered dose of vitamin (between 100 and 1000) in head (7)

10: Wild rose engulfs one willow (5)

11: Moscow politician revolting in style (7)

13: Allow feathers to disappoint. (3, 4)

14: Initially, celebrated Rough Rider's pick is to fish (5)

16: Everlasting ringing of changes, outside inside, upside down (9)

17: Strange lingo - some new expression (9)

20: One who regrets having left leader (5)

21: Correspondence from landlords (7)

22: Napoleonic site on Web is reactionary, very likely (7)

24: Slight urge at night (5)

25: Tasman has a way for French theologian, Peter (7)

26: Tendon's abnormal growth is in remission (5)

27: Skillfully planned wild tiger acts (9)

2: Correspond with mother and I boarding train (1-4)

3: Doctrine for some Kiwis makes sense (3)

4: Coral Sea, perhaps, without a fish (7)

5: Drive away roofing material before farmhouse becomes a target area (8,5)

6: Real idiot's rewritten opinion piece (9)

7: Reformed drinker helps a water distributor (9,4)

8: Grave study: code-breaking? (13)

9: Rolling wave rolls into Rolling Stones song (3,3,4,3)

12: Tweak with wrong end of a pin (3)

15: Sailor (not in performance) makes volte-face (5,4)

18: Which creatures are found in factions? (7)

19: Ran into a section of the time-table (3)

23: Crow circles front of gate in Eastern fort (5)

25: Freshen the atmosphere (3)