Bad atmosphere, one admitted by grandmother? (6)
I believe the answer is:
miasma
This clue could be a double definition.
'bad atmosphere' is the first definition.
(I've seen this in another clue)
'one admitted by grandmother?' is the second definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
Can you help me to learn more?
(Other definitions for miasma that I've seen before include "Unwholesome atmosphere, unhealthy vapors" , "Foul vapours or unwholesome air" , "Unwholesome or foreboding atmosphere" , "In poor atmospheric conditions" , "Foul vapour" .)