Walking stick, article found in church (4)
I believe the answer is:
cane
'walking stick' is the definition.
(cane is a kind of walking stick)
'article found in church' is the wordplay.
'article' becomes 'an' (indefinite article).
'found in' indicates putting letters inside.
'church' becomes 'ce' (abbreviation for Church of England).
'an' put within 'ce' is 'CANE'.
(Other definitions for cane that I've seen before include "Stem of palm" , "Walking stick; punish" , "Raspberry stem; beat" , "Punish; woody stem" , "Eg, rattan" .)