Crossword Genius

I do consent on set. Clearly, this is the very best (3,6,2,4)

Ross

I believe the answer is:

tis second to none

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'i do consent on set clearly this is the very best' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'i do consent on set clearly this is the very best' is the wordplay.
'i do consent on set' can be anagrammed to 'TIS SECOND TO NONE'.
Though, I'm not clear how this is indicated.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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