Individual in Greece, one with no future (5)
I believe the answer is:
goner
'one with no future' is the definition.
(I've seen this before)
'individual in greece' is the wordplay.
'individual' becomes 'one' (an individual is one person).
'in' is an insertion indicator.
'greece' becomes 'gr' (abbreviation).
'one' inserted into 'gr' is 'GONER'.
(Other definitions for goner that I've seen before include "One doomed to die" , "Someone beyond any hope of recovery" , "Doomed person" , "toast" , "Dead loss" .)