Some famous editors took drugs (4)
I believe the answer is:
used
'took drugs' is the definition.
(to use can mean to take drugs)
'some famous editors' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'USED' can be found hidden inside 'famous editors'.
(Other definitions for used that I've seen before include "Utilised" , "Prepossessed, perhaps" , "Accustomed, having been put into service" , "Subject to exploitation" , "Was treating" .)