1. Dispirited? This clue isn't! (4) D?W?
2. The verge of irritability (4) E?G?
3. The amount required to maintain the benefice? (4,2,6) C?S?, O?, L?V?N?
4. Killing the return of revolutionary spirit (6) ?U?D??
5. Shy green variety of birds (8) ???Y?E?S
6. Study upset by a fellow, it's assumed (6) ?O?N?D
7. He's rude enough to express disapproval of redhead (4) ?O?R