Show him the door bishopric impossible! (3,3)
I believe the answer is:
see out
'show him the door' is the definition.
The definition suggests a singular noun but the answer is not.
'bishopric impossible' is the wordplay.
'bishopric' becomes 'see' (I've seen this in another clue).
'impossible' becomes 'out' (out can mean no longer possible).
'see'+'out'='SEE OUT'
Can you help me to learn more?
(Other definitions for see out that I've seen before include "use window?" , "Accompany to door, or peer from window" , "Last" .)