Newcomer (7)
I believe the answer is:
parvenu
'newcomer' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for parvenu that I've seen before include "One coming" , "One who climbs" , "Johnny-come-lately, upstart" , "One newly risen to wealth or power" , "An upstart, new arrival to society" .)