Illumination around new weather feature (9)
I believe the answer is:
lightning
'feature' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'illumination around new weather' is the wordplay.
'illumination' becomes 'lighting' (lighting is a kind of illumination).
'around' means one lot of letters goes inside another.
'new weather' becomes 'n' (I am not sure about this - if you are sure you should believe this answer much more).
'lighting' enclosing 'n' is 'LIGHTNING'.
Can you help me to learn more?
(Other definitions for lightning that I've seen before include "What's conducted" , "Metal device on building for diverting natural electric discharges" , "Natural discharge of electricity" , "Natural electrical discharge" , "Electrical discharge from cloud" .)