Strip worn contains Catholic text (6)
I believe the answer is:
script
'text' is the definition.
(I've seen this before)
'strip worn contains catholic' is the wordplay.
'worn' is an anagram indicator (worn can mean damaged).
'contains' is an insertion indicator.
'catholic' becomes 'C' (abbreviation as in RC for Roman Catholic).
'strip' anagrammed gives 'sript'.
'sript' going around 'c' is 'SCRIPT'.
(Other definitions for script that I've seen before include "letters" , "Printed text" , "Form of text" , "Written version of a play" , "Text of play, film etc" .)