Santa confused before initial visit? He may need this guide (6)

I believe the answer is:

satnav

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'he may need this guide' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'santa confused before initial visit?' is the wordplay.
'confused' indicates anagramming the letters.
'before' means one lot of letters go next to another.
'initial' indicates taking the first letters.
The initial letter of 'visit' is 'v'.
'santa' with letters rearranged gives 'satna'.
'satna'+'v'='SATNAV'

Can you help me to learn more?

(Other definitions for satnav that I've seen before include "Driver's aid" , "Savant (anag)" , "Talking road map?" , "Route guide" , "Driver's guide" .)

I've seen this clue in The Irish Times.

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