Order of starter -- refined or manky and sour? (2,4,5)

I believe the answer is:

on your marks

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'order of starter' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'refined or manky and sour?' is the wordplay.
'refined' indicates anagramming the letters.
'and' says to put letters next to each other.
'or'+'manky'='ormanky'
'ormanky' after 'sour' is 'sourormanky'.
'sourormanky' anagrammed gives 'ON YOUR MARKS'.

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(Other definitions for on your marks that I've seen before include "Order to prepare" , "Take places (to race)" .)

I've seen this clue in The Telegraph.

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