Group of soldiers ordered to capture kit (7)
I believe the answer is:
brigade
'group of soldiers' is the definition.
(type of military unit)
'ordered to capture kit' is the wordplay.
'ordered' becomes 'bade' (past tense of 'bid' as in to order).
'to capture' indicates putting letters inside.
'kit' becomes 'rig' (I've seen this in other clues).
'bade' placed around 'rig' is 'BRIGADE'.
(Other definitions for brigade that I've seen before include "Military group" , "Company" , "Army unit" , "Army grouping" , "Part of an army division" .)