Good point about 'The Real Slim Shady'? Writer may use it (8)
I believe the answer is:
graphite
'good point' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
''the real slim shady'? writer may use it' is the wordplay.
I cannot really understand how this works, but
'real' could be 'e' (e is a kind of real) and 'e' is found in the answer.
'writer' could be 'i' (the person who is writing these clues) and 'i' is found within the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is present in the answer.
The remaining letters 'graph' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
'about' acts as a link.
Can you help me to learn more?
(Other definitions for graphite that I've seen before include "Form of carbon used in pencil leads" , "Black carbon used in lead pencils" , "Pig hater (anag)" , "Pencil-lead carbon" , "mineral" .)