Church contrivance given scope for part in a ship (9)

'church contrivance' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'scope for part in a ship' is the wordplay.
'scope' becomes 'room' (both can mean space).
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'part in a ship' becomes 'chart' (I can't justify this - if you can you should believe this answer much more).
'room' put after 'chart' is 'CHARTROOM'.

'given' acts as a link.

Can you help me to learn more?