Wording a wicked lie about the material (7)
I believe the answer is:
textile
'the material' is the definition.
('textile' can be a synonym of 'material')
'wording a wicked lie about' is the wordplay.
'wording' becomes 'text' (I've seen this before**).
'a wicked' is an anagram indicator.
'about' means one lot of letters goes inside another.
'lie' is an anagram of 'ile'.
'text' placed into 'ile' is 'TEXTILE'.
(Other definitions for textile that I've seen before include "'Fabric, material (7)'" , "The cloth's" , "Woven cloth" , "Cloth, fabric, material" , "Cloth made by weaving or knitting" .)