Class of discreet residence old pharaoh rejected (8)
I believe the answer is:
tutorial
'class' is the definition.
(I've seen this before)
'discreet residence old pharaoh rejected' is the wordplay.
'discreet residence' becomes 'lair' (I can't justify this - if you can you should give a lot more credence to this answer).
'old' becomes 'o' (abbreviation).
'pharaoh' becomes 'tut' (Tutankhamun, the ancient Egyptian pharaoh).
'rejected' says the letters should be written in reverse.
'lair'+'o'+'tut'='lairotut'
'lairotut' backwards is 'TUTORIAL'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for tutorial that I've seen before include "Period of teaching as from college lecturer" , "Study meeting" , "Seminar" , "University lesson" , "Rail tout (anag)" .)