Superficial appearance somehow never taking in European (6)
I believe the answer is:
veneer
'superficial appearance' is the definition.
(I've seen this in another clue)
'somehow never taking in european' is the wordplay.
'somehow' indicates anagramming the letters.
'taking in' is an insertion indicator.
'european' becomes 'e' (abbreviation e.g. EU).
'never' is an anagram of 'vener'.
'vener' placed around 'e' is 'VENEER'.
(Other definitions for veneer that I've seen before include "Thin coating on the outside" , "Face" , "A thin layer on the surface, often wood" , "Thin surfacing of wood" , "Superficial appearance" .)