Caution: answer is wrong (8)
I believe the answer is:
wariness
'caution' is the definition.
(I know that wariness is a type of caution)
'answer is wrong' is the wordplay.
'wrong' indicates anagramming the letters.
'answer'+'is'='answeris'
'answeris' with letters rearranged gives 'WARINESS'.
(Other definitions for wariness that I've seen before include "Circumspection" , "State of caution" , "Caution, watchfulnes" .)