Miles performing soaring finale (2,3)

I believe the answer is:

no end

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'miles performing soaring finale' is the definition.
I can't judge whether this defines the answer.

'performing soaring finale' is the wordplay.
'performing' becomes 'on' (as in being on stage).
'soaring' is a reversal indicator (in a down clue, letters 'soar' up).
'finale' becomes 'end' (the end of a story or show).
'on' backwards is 'no'.
'no'+'end'='NO END'

Can you help me to learn more?

(Other definitions for no end that I've seen before include "detailed?" , "A lot" , "Non-stop" , "Enormously" , "Very much (colloq.)" .)

I've seen this clue in The Times.

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