Told to get systematised! (7)
I believe the answer is:
ordered
This clue is a double definition.
'told' is the first definition.
(given orders)
'systematised' is the second definition.
(thesaurus)
'to get' is the link.
(Other definitions for ordered that I've seen before include "Instructed" , "Demanded" , "Sorted out" , "Requisitioned" , "well-organised" .)