Dog is yet confused about protection (8)
I believe the answer is:
security
'protection' is the definition.
(I know that protection can be written as security)
'dog is yet confused about' is the wordplay.
'dog' becomes 'cur' (a cur is an aggressive or scruffy dog).
'confused' indicates an anagram.
'about' indicates putting letters inside.
'is'+'yet'='isyet'
'isyet' with letters rearranged gives 'seity'.
'cur' put within 'seity' is 'SECURITY'.
(Other definitions for security that I've seen before include "Safety measures" , "peace of mind" , "cover" , "Freedom from anxiety or fear" , "Safety; stock certificate" .)