Part of the capital where services are held
I believe the answer is:
temple
'part' is the definition.
(temple is a kind of part)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for temple that I've seen before include "Capital feature" , "London lawyers' church" , "Side of head or sacred building" , "Side of head or holy building" , "Shrine" .)