Church member mislays clubs belonging to ancient invaders? (7)
I believe the answer is:
anglian
'church' is the definition.
(the Anglian church is the Church of England)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for anglian that I've seen before include "English dialect" , "of German descent" , "Relating to the Angles" , "Of the tribe from which?England gets its name" .)