Organising revolt, why broadcast in public? (7)
I believe the answer is:
overtly
'in public?' is the definition.
(I've seen this before)
'organising revolt why broadcast' is the wordplay.
'organising' indicates anagramming the letters.
'broadcast' indicates a 'sounds like' (homophone) clue (how the word might sound on the radio or TV).
'why' sounds like 'y'.
'revolt' is an anagram of 'overtl'.
'overtl'+'y'='OVERTLY'
(Other definitions for overtly that I've seen before include "in the public eye" , "public fashion" , "Publicly; evidently" , "openly on view" , "In an open manner" .)