Met rep in des res unfortunately portrayed inaccurately (14)
I believe the answer is:
misrepresented
'portrayed inaccurately' is the definition.
(to misrepresent is to portray falsely)
'met rep in des res unfortunately' is the wordplay.
'unfortunately' indicates anagramming the letters.
'met'+'rep'+'in'+'des'+'res'='metrepindesres'
'metrepindesres' with letters rearranged gives 'MISREPRESENTED'.
(Other definitions for misrepresented that I've seen before include "Gave wrong impression" , "Hospital department" , "Gave a false account of" , "produced false accounts" .)