Spice Girl content in journey somewhere in Australia (9)
I believe the answer is:
melbourne
'somewhere in australia' is the definition.
'spice girl content in journey' is the wordplay.
'spice girl' becomes 'melb' (Mel B is a Spice Girls member).
'content in' says to take the centre.
The middle letters of 'journey' are 'ourne'.
'melb'+'ourne'='MELBOURNE'
(Other definitions for melbourne that I've seen before include "Prime minister to William IV - setting for many an 6 test" , "home for Victorians" , "State capital of Victoria" , "First capital of Australia (1901-27)" , "Australian city" .)