Band ordered to include fiddle (7)
I believe the answer is:
brigade
'band' is the definition.
(thesaurus)
'ordered to include fiddle' is the wordplay.
'ordered' becomes 'bade' (I've seen this before).
'to include' is an insertion indicator.
'fiddle' becomes 'rig' (I've seen this before).
'bade' going around 'rig' is 'BRIGADE'.
(Other definitions for brigade that I've seen before include "Army subdivision" , "Soldiers" , "Rig a bed (anag)" , "Military group" , "Abridge (anag)" .)