Old country lover missing uproar, living abroad (5)
I believe the answer is:
expat
'living abroad' is the definition.
(I've seen this before)
'old country lover missing uproar' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'country lover' becomes 'patriot' (someone who loves their country).
'missing' is a deletion indicator.
'uproar' becomes 'riot' (both can mean a disturbance or commotion).
'patriot' with 'riot' taken away is 'pat'.
'ex'+'pat'='EXPAT'
(Other definitions for expat that I've seen before include "Degrade" , "Person living abroad" , "Former countryman" , "Exile, in short" , "Brit abroad, say" .)