Invincible men to point out (10)
I believe the answer is:
omnipotent
'invincible' is the definition.
(omnipotent means all-powerful)
'men to point out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'men'+'to'+'point'='mentopoint'
'mentopoint' anagrammed gives 'OMNIPOTENT'.
(Other definitions for omnipotent that I've seen before include "All-powerful" , "Almighty" .)