Parisian’s here with head cold that’s severe (7)
I believe the answer is:
iciness
'parisian's here with head cold that's severe' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'parisian's here with head' is the wordplay.
'parisian's here' becomes 'ici' (I can't explain this - if you can you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'head' becomes 'ness' (ness is a headland).
'ici'+'ness'='ICINESS'
Can you help me to learn more?
(Other definitions for iciness that I've seen before include "Unapproachability" , "Extreme chill" , "Hostile attitude" , "Chill; reserve" , "Frozen state of" .)