Land in Iraq, at Ar-Rutbah (5)
I believe the answer is:
qatar
'land' is the definition.
(Qatar is an example)
'in iraq at ar-rutbah' is the wordplay.
'in' indicates the answer is hidden within the clue.
'QATAR' is hidden in the letters of 'iraq at ar rutbah'.
(Other definitions for qatar that I've seen before include "State in the Persian Gulf" , "found by the Persian Gulf" , "Arab peninsula" , "Doha's sheikhdom" , "who won the cup in 2010?" .)