Arabs mistreated in Iraqi port (5)
I believe the answer is:
basra
'iraqi port' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for basra that I've seen before include "Iraqi port city" , "Iraq's main port" , "Chief port of Iraq" , "Iraqi town" , "South Iraqi oil port" .)