Tonight, also broadcasting collector (11)
I believe the answer is:
anthologist
'collector' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'tonight also broadcasting' is the wordplay.
'broadcasting' indicates anagramming the letters.
'tonight'+'also'='tonightalso'
'tonightalso' is an anagram of 'ANTHOLOGIST'.
Can you help me to learn more?
(Another definition for anthologist that I've seen is " He collects a lot".)