### Clue: Director oddly upset by these changes in household cover (9)
### Answer: DUSTSHEET 
 ### Explanation: Definition: household cover
  D(abbrev. for director) + U,S,T(the letters in the 1st, 3rd, and 5th positions,oddly of "upset") **plus**(by) **anagram of**(changes) THESE.
Answer:  What is used to cover the furniture, etc. in a household, if they're to be left undusted for a long time.