Melancholy broadcast praised (7)
I believe the answer is:
despair
'melancholy' is the definition.
(thesaurus)
'broadcast praised' is the wordplay.
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'praised' is an anagram of 'DESPAIR'.
(Other definitions for despair that I've seen before include "Praised (anag) - lose hope" , "Misery" , "The feeling that nothing will turn out well" , "Total loss of hope" , "Complete loss of hope" .)