Bishopric includes quiet church address (6)
I believe the answer is:
speech
'address' is the definition.
(I know that address can be written as speech)
'bishopric includes quiet church' is the wordplay.
'bishopric' becomes 'see' (I've seen this before).
'includes' indicates putting letters inside.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'church' becomes 'ch' (common abbreviation).
'see' going around 'p' is 'spee'.
'spee'+'ch'='SPEECH'
(Other definitions for speech that I've seen before include "Giving address" , "words" , "Formal address or discourse" , "Communication by word of mouth" , "Oral form of communication" .)