Staff of office and a spice (4)
I believe the answer is:
mace
'staff of office and a spice' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for mace that I've seen before include "Spice; ceremonial baton" , "Disabling spray" , "Staff of office for a flavouring" , "Staff of office and a spice" , "One of 9 [CLUBS]" .)