Kingdom’s chief in capital without empress primarily (8)
I believe the answer is:
monarchy
'kingdom's' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for monarchy that I've seen before include "realm" , "sort of government" , "Kingship system" , "Rule by a sovereign" , "Kingdom - kingship" .)