Order out of the garret! (6)
I believe the answer is:
garter
'order' is the definition.
(thesaurus)
'out of the garret' is the wordplay.
'out of' indicates an anagram.
'garret' anagrammed gives 'GARTER'.
(Other definitions for garter that I've seen before include "Sock supporter" , "It holds a stocking up" , "Band to keep a stocking or sleeve up" , "Support for a stocking" , "Band worn on leg" .)