No good supporting old king, everyone together expressing disapproval (3-7)

I believe the answer is:

tut-tutting

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'together expressing disapproval' is the definition.
I can't judge whether this defines the answer.

'no good supporting old king everyone' is the wordplay.
'no good' becomes 'ng' (abbreviation).
'supporting' is a charade indicator (letters next to each other) (in a down clue, some letters go below others).
'old king' becomes 'tut' (King Tut).
'everyone' becomes 'tutti' (I am not sure about this - if you are sure you should believe this answer much more).
'tut'+'tutti'='tuttutti'
'ng' put after 'tuttutti' is 'TUT-TUTTING'.

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I've seen this clue in The Times.

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