Current article in mainstream media creating unpleasant atmosphere (5)
I believe the answer is:
miasm
'mainstream media creating unpleasant atmosphere' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'current article' is the wordplay.
I cannot really see how this works, but
'current' could be 'i' (physics symbol) and 'i' is located in the answer.
'article' could be 'a' (English indefinite article) and 'a' is present in the answer.
This explanation may well be incorrect...
'in' acts as a link.
Can you help me to learn more?
(Another definition for miasm that I've seen is " stench".)