Journalist's item about wine (6)
I believe the answer is:
report
'journalist's item' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'about wine' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'wine' becomes 'port' (port is a kind of wine).
're'+'port'='REPORT'
Can you help me to learn more?
(Other definitions for report that I've seen before include "Short account of the news" , "Statement - sound of a gun firing" , "Teacher's assessment" , "A crack" , "Write-up" .)