Bedouin (4)
I believe the answer is:
arab
'bedouin' 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 "Qatari or Omani, say" , "Small riding horse" , "Saudi, e.g." , "One from the Middle East, say" , "Fine horse breed" .)