Crack August's crossword competition to win The Elements of Eloquence: How to Turn the Perfect English Phrase, by Mark Forsyth.

Several clues contain a superfluous word. Initial letters of these words provide a definition of the unclued answers. 

 Cunning Brecht character occupying most of valley (5)

Across

1.   Old magazine's taken about a year contracting with corporation (7) 

7.  Conserve bishop's post (4) 

10.  Cunning Brecht character occupying most of valley (5) 

12.  Old compound discovered in the Parthenon (5) 

15.  Lurk in fit of resentment around Hyde Park ultimately (5) 

16. Element mostly restricting one universal browser (7) 

18. More than one sense of self-importance anathematised in the Gospels (4) 

20.  Pro nobody backs in the early hours (8) 

22. Measure of thickness poorly recalled in questionable undertaking (8) 

23. Cut nails the wrong way (4) 

25.Empress recovered from a strain (7) 

28. Women in clan were busy with new brooms (5) 

30. One mile's run, note, in series of races in prescribed period (4,5) 

31. Irons out application made by player (5) 

32. Academic returning to accept degree is an unsettled type (5) 

33. Deity portrayed by Corinthian sculptor, missing head (4) 

34. Reporters revealing bridge player overlooking first sign (7) 

 

Down

1. Timid people at first turning up early form of rock (6) 

2. A fish - a fish that's a jelly (4-4) 

3. Luminous mists in northern India enveloping one lone medic (5 

4. Conservative member's example of upward mobility? (5) 

5. Half bushel left in gambling house (4) 

6. Seen in gulch - a small abyss (5) 

8.  Post payment in Scotland (4) 

9. Rough mountain bordering South Korea (6) 

11. Enticement offered by everybody - obsolete practice (6) 

13. Live element in old unit represented in sound, mostly (9) 

14. Scots call canaries ornithic singers (9) 

17. Match decision in disarray, second to be challenged at the start (8) 

19. Rose later than expected, having singular protein (5,2) 

21. Most favourable conditions in Ohio registered at 1 pm, maybe (6) 

22. President represented by actors (6) 

24. Shift metal found in side street (5) 

26. Permit to rebuild old wall (5) 

27.  Miser relocated in French city (5) 

29. Biological determinant partly providing energy (4) 

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