Game of kings and queens (5)
I believe the answer is:
chess
'game of kings and queens' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for chess that I've seen before include "Game with kings and queens" , "Board game of 13, 16 and 21" , "activity aimed at downfall of a king" , "that has over thirty men on board" , "Benny Andersson and Bjorn Ulvaeus musical" .)