Correctness of current church office (8)
I believe the answer is:
accuracy
'correctness' is the definition.
(I've seen this before)
'current church office' is the wordplay.
'current' becomes 'ac' (alternating current).
'church office' becomes 'curacy' (I've seen this before).
'ac'+'curacy'='ACCURACY'
'of' is the link.
(Other definitions for accuracy that I've seen before include "fidelity" , "faithfulness" , "Correctness - exactitude" , "Correctness, nearness to truth" , "Preciseness" .)