One acted out account (8)
I believe the answer is:
anecdote
'account' is the definition.
(anecdote is a kind of account)
'one acted out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'one'+'acted'='oneacted'
'oneacted' with letters rearranged gives 'ANECDOTE'.
(Other definitions for anecdote that I've seen before include "Brief story" , "Short accoung of an incident" , "Pithy account of an incident" , "Short account of an incident" , "A short amusing story, probably true" .)