Old article about right for port in Algeria (4)
I believe the answer is:
oran
'for port in algeria' is the definition.
(I've seen this in another clue)
'old article about right' is the wordplay.
'old' becomes 'o' (abbreviation).
'article' becomes 'an' (English indefinite article).
'about' is a charade indicator (letters next to each other).
'right' becomes 'r' (common abbreviation).
'an' put after 'r' is 'ran'.
'o'+'ran'='ORAN'
(Other definitions for oran that I've seen before include "Algerian port" , "African port" , "Algerian seaport" .)