Going north from here, craft regularly vacant (4)

I believe the answer is:

free

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'vacant' is the definition.
(thesaurus)

'going north from here craft regularly' is the wordplay.
'going north' shows that the letters should be reversed in order.
'from here' becomes 'ee' (I can't explain this - if you can you should give a lot more credence to this answer).
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'craft' are 'rf'.
'ee'+'rf'='eerf'
'eerf' reversed gives 'FREE'.

Can you help me to learn more?

(Other definitions for free that I've seen before include "Unrestrained" , "Let loose" , "Gratis, for nothing" , "Out of bondage" , "without payment" .)

I've seen this clue in The Telegraph.

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