The same one in church had style (5)
I believe the answer is:
doric
'style' is the definition.
(thesaurus)
'the same one in church' is the wordplay.
'the same' becomes 'do' (abbreviation for ditto).
'one' becomes 'i' (Roman numeral).
'in' indicates putting letters inside.
'church' becomes 'rc' (abbreviation for Roman Catholic).
'i' put within 'rc' is 'ric'.
'do'+'ric'='DORIC'
'had' is the link.
(Other definitions for doric that I've seen before include "Classical building style" , "hairdo tips costly, for the most part" , "Type of classical architecture" , "Denoting a classic Greek style" , "Greek architectural style" .)