Tidings of lightning? (9)
I believe the answer is:
newsflash
'tidings of lightning?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?
'tidings of lightning?' is the wordplay.
I cannot quite understand how this works, but
'tidings' could be 'news' (synonyms) and 'news' is found within the answer.
'lightning?' could be 'flash' (lightning is a kind of flash) and 'flash' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for newsflash that I've seen before include "Dramatic announcement" , "Bulletin" , "Brief report" .)