Very clear this writer taps into a lot of elegance (7)
I believe the answer is:
graphic
'very clear' is the definition.
(very clear or explicit)
'this writer taps into a lot of elegance' is the wordplay.
'this writer taps' becomes 'phi' (I can't explain this - if you can you should give a lot more credence to this answer).
'into' means one lot of letters goes inside another.
'a lot of' means to remove the last letter (most of the word but not all of it).
'elegance' becomes 'grace' (I've seen this before).
'grace' with its final letter removed is 'grac'.
'phi' inserted inside 'grac' is 'GRAPHIC'.
(Other definitions for graphic that I've seen before include "Pictorial" , "Expressive" , "Described in detail" , "(Of an account) vivid" , "Evoking vivid images" .)