Emir, a narcissist controlling Islamic country (4)
I believe the answer is:
iran
'islamic country' is the definition.
'iran' can be an answer for 'country' (Iran is an example). I am not certain of the 'islamic' bit.
'emir a narcissist controlling' is the wordplay.
'controlling' says the answer is hidden in the clue (the solution is controlled or contained).
'IRAN' is hidden within 'emir a narcissist'.
Can you help me to learn more?
(Other definitions for iran that I've seen before include "Persia today" , "Former Persia" , "Tehran is its capital" , "Country lying to south of Caspian sea" , "Iraq's neighbour" .)