Again television suppresses this information (5)
I believe the answer is:
intel
'information' is the definition.
(I've seen this before)
'again television suppresses' is the wordplay.
'suppresses' indicates a hidden word (the clue suppresses or covers up the answer).
'INTEL' is hidden in the letters of 'again television'.
'this' acts as a link.
(Other definitions for intel that I've seen before include "Chip manufacturer based in California" , "silicon chip manufacturer" , "military info" , "Information" , "US chip manufacturer" .)