Wiping memory of article in list (7)
I believe the answer is:
lethean
'wiping memory' is the definition.
(I've seen this before)
'article in list' is the wordplay.
'article' becomes 'the' (the definite article).
'in' is an insertion indicator.
'list' becomes 'lean' (both can mean to tilt).
'the' placed inside 'lean' is 'LETHEAN'.
'of' is the link.
(Other definitions for lethean that I've seen before include "Preventing recall" , "wiping memory" , "affecting memory" , "Causing forgetfulness and oblivion" , "Making one forget" .)