Latin sign I assume contains symbols associated with office (8)
I believe the answer is:
insignia
'symbols associated with office' is the definition.
(symbols of a particular ceremonial office)
'latin sign i assume contains' is the wordplay.
'contains' indicates the answer is hidden within the clue.
'INSIGNIA' can be found hidden inside 'latin sign i assume'.
(Other definitions for insignia that I've seen before include "arms" , "Badge or emblems of office" , "Badge worn to show official position" , "Badge of membership" , "Badges of office" .)