Protest from daughter is broadcast (7)
I believe the answer is:
dissent
'protest' is the definition.
('dissent' can be a synonym of 'protest')
'daughter is broadcast' is the wordplay.
'daughter' becomes 'dis' (I've seen this in other clues).
'is broadcast' becomes 'sent' (I've seen this in other clues).
'dis'+'sent'='DISSENT'
'from' acts as a link.
(Other definitions for dissent that I've seen before include "Objection" , "Opposition" , "Object" , "Dispute" , "Not agree" .)