### Clue: Shades cover personnel facilities (7)
### Answer: THRONES 
 ### Explanation: Definition: facilities
 TONES(shades differentiating how bright or deep colours are) **containing**(cover) HR(abbrev. for "human resources";personnel – what used to be called the Personnel Dept. is now the HR Dept., which is refered to by its detractors as the Dept. of Human Remains – apologies to anyone in that field).
Defn: … in the toilet, informally.