Crossword Genius

Given three seconds, revolutionary lefty oddly missing kings, queens, etc (5,3)

Ross

I believe the answer is:

I'm a little stuck... Click here to teach me more about this clue!

'kings queens etc' is the definition.
I know that both 'kings' and 'queens' relate to this answer.

'given three seconds revolutionary lefty oddly missing' is the wordplay.
'given' is a charade indicator (letters next to each other).
'three seconds' becomes 'sss'.
'revolutionary' becomes 'che' (Che Guevara the Marxist revolutionary).
'oddly missing' indicates alternate letters.
The alternating letters of 'lefty' are 'et'.
'sss' put after 'che' is 'chesss'.
'chesss'+'et'='CHESS SET'

Can you help me to learn more?

(Other definitions for chess set that I've seen before include "It's played with kings, queens and bishops", "Game with kings, queens and bishops", "It's played on a chequered board with 32 pieces", "men, along with the board", "King, pawns etc.".)

I've seen this clue in The Guardian.