Ottoman intelligence protecting Arab citizen (5)

I believe the answer is:
omani
'arab citizen' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'ottoman intelligence protecting' is the wordplay.
'protecting' says the answer is hidden in the clue.
'OMANI' is hidden in the letters of 'ottoman intelligence'.
Can you help me to learn more?
(Other definitions for omani that I've seen before include "Naomi (anag) -- from Muscat?" , "Speaker of Arabic" , "Eg, a native of Muscat" , "M East person" , "Inhabitant of Middle Eastern sultanate" .)
