One way of getting something you want from one named Santa, improbably (1,5,2,2,3)

I believe the answer is:

a means to an end

'one way of getting something you want' is the definition.
(a means to an end is a means of achieving a goal)

'one named santa improbably' is the wordplay.
'improbably' indicates anagramming the letters (I've seen this in other clues).
'one'+'named'+'santa'='onenamedsanta'
'onenamedsanta' anagrammed gives 'A MEANS TO AN END'.

'from' acts as a link.

(Another definition for a means to an end that I've seen is " Not important in itself, but useful to the whole".)

I've seen this clue in The Times.

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