Opening special broadcast is work of bishop (9)
I believe the answer is:
episcopal
'of bishop' is the definition.
(I've seen this before)
'opening special broadcast is work' is the wordplay.
'opening' is an insertion indicator (some letters open a gap in others).
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'is work' becomes 'op' (abbreviation for opus).
'special' anagrammed gives 'episcal'.
'episcal' enclosing 'op' is 'EPISCOPAL'.
(Other definitions for episcopal that I've seen before include "To do with bishop - maybe Pepsi-Cola" , "Scottish Church" , "Relating to a bishop" , "To do with bishops imbibing Pepsi-cola?" , "Pepsi-Cola (anag) - pertaining to a bishop" .)