Control reporters on drink (8)
I believe the answer is:
suppress
'control' is the definition.
(suppressing is a kind of controlling)
'reporters on drink' is the wordplay.
'reporters' becomes 'press' (I've seen this before).
'on' means one lot of letters go next to another.
'drink' becomes 'sup' (I've seen this before).
'press' put after 'sup' is 'SUPPRESS'.
(Other definitions for suppress that I've seen before include "Prevent from being made public" , "squash" , "Prevent, inhibit" , "Stop publication of" , "Prevent (from being published)" .)