King and Queen soon upset God (6)

I believe the answer is:

kronos

'god' is the definition.
(Greek god)

'king and queen soon upset' is the wordplay.
'king' becomes 'K' (abbreviation for king in chess).
'and' means one lot of letters go next to another.
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'upset' indicates an anagram.
'soon' with letters rearranged gives 'onos'.
'k'+'r'+'onos'='KRONOS'

(Another definition for kronos that I've seen is " Titan".)

I've seen this clue in The Guardian.

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