Maybe Sun to ad-lib in rewrite (7)
I believe the answer is:
tabloid
'rewrite' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'maybe sun to ad-lib' is the wordplay.
'to ad-lib' can be anagrammed to 'TABLOID'.
Though, I'm unsure how this is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for tabloid that I've seen before include "Small format newspaper" , "Star, maybe" , "daily, perhaps" , "Populist newspaper" , "Small-format newspaper" .)