Utterly wrong about article offering protection (8)
I believe the answer is:
tutelary
'offering protection' is the definition.
'utterly wrong about article' is the wordplay.
'wrong' indicates an anagram.
'about' means one lot of letters goes inside another.
'article' becomes 'a' (indefinite article).
'utterly' with letters rearranged gives 'tutelry'.
'tutelry' going around 'a' is 'TUTELARY'.
(Other definitions for tutelary that I've seen before include "Serving as guardian, giving protection" , "Like the Guardian" .)