Mideast resident (4)
I believe the answer is:
'mideast resident' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for arab that I've seen before include "Horse of a breed originating in the Middle East" , "race" , "Qatari or Omani, say" , "Small riding horse" , "Saudi, perhaps - breed of horse" .)