Skilled worker from Hobart is a newcomer (7)
I believe the answer is:
artisan
'skilled worker' is the definition.
(an artisan is a skilled craftsperson)
'from hobart is a newcomer' is the wordplay.
'from' indicates a hidden word.
'ARTISAN' can be found hidden inside 'hobart is a newcomer'.
(Other definitions for artisan that I've seen before include "crafty person?" , "Smith" , "Skilled worker at craft or trade" , "craftsman of his trade" , "man with skill" .)