Snake with European court appearance (6)
I believe the answer is:
aspect
'appearance' is the definition.
(aspect is a kind of appearance)
'snake with european court' is the wordplay.
'snake' becomes 'asp' (asp is a kind of snake).
'with' means one lot of letters go next to another.
'european' becomes 'e' (abbreviation e.g. EU).
'court' becomes 'ct' (abbreviation used in road names).
'asp'+'e'+'ct'='ASPECT'
(Other definitions for aspect that I've seen before include "Vista, panorama" , "The way something looks" , "front" , "Appearance or viewpoint" , "View - facial expression" .)