Egyptian name of some special interest (3)
I believe the answer is:
ali
'egyptian name' is the definition.
(I've seen this before)
'some special interest' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'ALI' is hidden in the letters of 'special interest'.
'of' is the link.
(Other definitions for ali that I've seen before include "Muhammad's son-in-law" , "Muhammad ___ (or MacGraw?)" , "Son-in-law to Muhammad" , "Cassius Clay became Muhammad ..." , "Person" .)