Part from a Jordanian officer (5)
I believe the answer is:
major
'officer' is the definition.
(type of military officer)
'part from a jordanian' is the wordplay.
'part' indicates the answer is hidden within the clue.
'MAJOR' is hidden in the letters of 'from a jordanian'.
(Other definitions for major that I've seen before include "Bigger" , "Of considerable importance" , "See 11 Across" , "Important, significant" , "Commissioned military officer" .)