Weather report? (11)
I believe the answer is:
thunderclap
'weather report?' is the definition.
The answer and definition can be both related to natural events as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'weather report?' is the wordplay.
'weather' becomes 'thunder' (thunder is a type of weather).
'report?' becomes 'clap' (I am not sure about this - if you are sure you should believe this answer much more).
'thunder'+'clap'='THUNDERCLAP'
Can you help me to learn more?
(Other definitions for thunderclap that I've seen before include "Something unexpected and alarming" , "Report of electrical power strike" , "Boom" , "Noise from the sky" , "Sudden loud noise (in a storm)" .)