Giles hired for Santa's journey (6,4)

I believe the answer is:

sleigh ride

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'santa's journey' is the definition.
I know nothing about this answer so I can't tell whether this works.

'giles hired' is the wordplay.
'giles hired' anagrams to 'SLEIGH RIDE'.
However, I'm unsure how the anagram is indicated.

'for' acts as a link.

Can you help me to learn more?

(Another definition for sleigh ride that I've seen is " winter journey?".)

I've seen this clue in The Irish Independent.

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