When the essence of Mr Jobs is iPhones at last resort (2,4)

I believe the answer is:

st ives

'when the essence of mr jobs' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'iphones at last resort' is the wordplay.
'last' says to take the final letters.
'resort' becomes 'ives' (I am not sure about this - if you are sure you should believe this answer much more).
The last letters of 'iphones at' are 'st'.
'st'+'ives'='ST IVES'

'is' acts as a link.

(Another definition for st ives that I've seen is " town".)

I've seen this clue in The Guardian.

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