Cult leader on drugs quietly tries to get sorted out (4,6)
I believe the answer is:
high priest
'cult leader' is the definition.
(I've seen this before)
'on drugs quietly tries to get sorted out' is the wordplay.
'on drugs' becomes 'high' (high can mean using drugs).
'quietly' becomes 'p' (p for piano and quiet).
'to get sorted out' indicates an anagram.
'tries' is an anagram of 'riest'.
'high'+'p'+'riest'='HIGH PRIEST'
(Other definitions for high priest that I've seen before include "Ecclesiastical dignitary" , "cult leader" , "Chief religious official" , "Not how this minister" , "Senior clergyman" .)