Former media, say (7)
I believe the answer is:
express
'say' is the definition.
(to express something is to say it)
'former media' is the wordplay.
'former' becomes 'ex' (prefix meaning former or onetime).
'media' becomes 'press' (the press is part of the media).
'ex'+'press'='EXPRESS'
(Other definitions for express that I've seen before include "Put into words - quick!" , "Verbalise - train" , "set forth" , "clear > couch" , "Fleet" .)