Unhealthy condition of Society? That’s the case across the pond (9)
I believe the answer is:
sinusitis
'unhealthy condition' is the definition.
The answer and definition can be both states of affairs as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for sinusitis that I've seen before include "Inflammation in the skull" , "nasal problem" , "Nasal membrane inflammation" , "Inflammation of head cavities" , "Inflammation of nasal cavities" .)