Can set out a position (6)
I believe the answer is:
stance
'a position' is the definition.
(I know that stance is a type of position)
'can set out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'can'+'set'='canset'
'canset' is an anagram of 'STANCE'.
(Other definitions for stance that I've seen before include "driver preparing to strike" , "Attitude, point of view" , "Posture; viewpoint" , "Deportment" , "Posture assumed" .)