Classified (6)
'classified' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for sorted that I've seen before include "dealt with" , "Put into correct sequence" , "Arranged into groups" , "Put into order" , "Categorised" .)
'classified' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for top-secret that I've seen before include "Highly restricted (information)" , "Of the highest security classification" , "Highest classified (information)" , "(Of information) strictly not for public consumption" , "Extremely restricted (information)" .)