Ordered to carry grand insignia (5)
I believe the answer is:
badge
'insignia' is the definition.
(I've seen this before)
'ordered to carry grand' is the wordplay.
'ordered' becomes 'bade' (I've seen this before).
'to carry' indicates putting letters inside.
'grand' becomes 'G' (G is short for ground as in a thousand).
'bade' placed around 'g' is 'BADGE'.
(Other definitions for badge that I've seen before include "Identifying label" , "Worn emblem" , "Shield" , "Identifying emblem" , "Distinguishing emblem" .)