Yard in fetid area, no good place for Kim? (9)

'place for kim?' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'yard in fetid area no good' is the wordplay.
'yard' becomes 'y' (abbreviation).
'in' indicates putting letters inside.
'fetid' becomes 'pongy' (I can't justify this - if you can you should give a lot more credence to this answer).
'area' becomes 'a' (maths abbreviation).
'no good' becomes 'ng' (abbreviation for no and good).
'y' put into 'pongy' is 'pyongy'.
'pyongy'+'a'+'ng'='PYONGYANG'

Can you help me to learn more?