Confused seer takes artist a bit of stationery (6)
I believe the answer is:
eraser
'a bit of stationery' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'confused seer takes artist' is the wordplay.
'confused' is an anagram indicator.
'takes' indicates putting letters inside.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'seer' anagrammed gives 'eser'.
'eser' placed around 'ra' is 'ERASER'.
Can you help me to learn more?
(Other definitions for eraser that I've seen before include "Required, should you make a mistake" , "An Indian rubber" , "Implement for rubbing out" , "Correcting implement used in drawing or writing" , "Implement to rub out" .)