### Clue: Very dry bishop with a dull manner hard to shrug off (4)
### Answer: BRUT 
 ### Explanation: Definition: Very dry
  B(*bishop*, as in chess notation) +(*with*) RUT(a boring,*dull* routine from which it is *hard* *to* escape,*shrug off*, not to be confused with the far from boring periodical sexual excitement of deer, goats, sheep, etc.)
Defn:  Descriptive of a champagne, not sweet.