Place perhaps in which church ultimately sits? (6)
I believe the answer is:
chapel
'place perhaps in which church ultimately sits?' is the definition.
'chapel' can be an answer for 'place' (I have seen 'Place of worship ' mean 'chapel' so perhaps 'place' could also mean 'chapel'). I'm not sure about the rest of the definition.
'place perhaps in which church ultimately' is the wordplay.
'perhaps' indicates an anagram.
'in which' is an insertion indicator.
'ultimately' says to take the final letters.
The final letter of 'church' is 'h'.
'place' is an anagram of 'capel'.
'capel' going around 'h' is 'CHAPEL'.
Can you help me to learn more?
(Other definitions for chapel that I've seen before include "Place of worship with an altar" , "Local printers" , "Nonconformist church" , "religious building" , "Might he clap in the place of worship?" .)