Host of internet broadcast's biting answer (9)
I believe the answer is:
entertain
'host' is the definition.
(entertain can mean to host guests)
'internet broadcast's biting answer' is the wordplay.
'broadcast's' is an anagram indicator (I've seen 'broadcast' mean this (letters scattered or cast around)).
'biting' is an insertion indicator (some letters bite or swallow others).
'answer' becomes 'a' (abbreviation eg in Q and A).
'internet' is an anagram of 'entertin'.
'entertin' placed around 'a' is 'ENTERTAIN'.
'of' is the link.
(Other definitions for entertain that I've seen before include "cheer" , "Act as host" , "Amuse, divert" , "Create a diversion" , "Amuse; host" .)