He writes articles about drink (8)
I believe the answer is:
reporter
'he writes articles' is the definition.
'about drink' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'drink' becomes 'porter' (porter is a kind of drink).
're'+'porter'='REPORTER'
(Other definitions for reporter that I've seen before include "media person" , "Newsperson" , "News journalist" , "Newsman" , "Hack" .)