Quiet Doctor Fair! He's an Egyptian actor! (6)
I believe the answer is:
sharif
'he's an egyptian actor' is the definition.
The definition suggests a singular noun which matches the answer.
'quiet doctor fair' is the wordplay.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'doctor' is an anagram indicator.
'fair' anagrammed gives 'arif'.
'sh'+'arif'='SHARIF'
Can you help me to learn more?
(Other definitions for sharif that I've seen before include "Ruler" , "Prince" , "Omar --, film actor" , "Important Arab" .)