Broadcaster’s novel dares rubbish the Queen (10)
I believe the answer is:
newsreader
'broadcaster's' is the definition.
(I've seen this before)
'novel dares rubbish the queen' is the wordplay.
'novel' becomes 'new' (synonyms).
'rubbish' is an anagram indicator (a poor quality or rubbish spelling of the letters).
'the queen' becomes 'ER' (abbreviation for Elizabeth Regina).
'dares' with letters rearranged gives 'sread'.
'new'+'sread'+'er'='NEWSREADER'
(Other definitions for newsreader that I've seen before include "TV employee" , "TV current affairs presenter" , "Presenter of bulletin" , "Bulletin broadcaster" .)