Catholic chosen to protect head of charity, I see (8)
I believe the answer is:
eclectic
'catholic' is the definition.
(I've seen this before)
'chosen to protect head of charity i see' is the wordplay.
'chosen' becomes 'elect' ('elect' as an adjective can mean chosen).
'to protect' is an insertion indicator.
'head of' says to take the initial letters.
'see' becomes 'C' (the word for the letter, according to Chambers).
The initial letter of 'charity' is 'c'.
'elect' placed around 'c' is 'eclect'.
'eclect'+'i'+'c'='ECLECTIC'
(Other definitions for eclectic that I've seen before include "ranging wide" , "Given to picking and choosing" , "Catholic" , "All-embracing" , "Using a wide variety of sources" .)