Sounding like a simple Moslem leader (5)
I believe the answer is:
ameer
'moslem leader' is the definition.
(I've seen this in another clue)
'sounding like a simple' is the wordplay.
I cannot really see how this works, but
'sounding' could be 'e' (I've seen this in other clues) and 'e' is present in the answer.
'a' is within the answer.
The remaining letters 'mer' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ameer that I've seen before include "Muslim prince (alt.spelling)" , "Asian dignitary" , "Muslim prince's title" , "Former ruler's title in Afghanistan" , "Eastern potentate (variant spelling)" .)