European cold and tense after snake's appearance (6)
I believe the answer is:
aspect
'appearance' is the definition.
(I know that aspect is a type of countenance)
'european cold and tense after snake's' is the wordplay.
'european cold' becomes 'ec' (this could be a standard abbreviation I've not previously seen).
'and' is a charade indicator (letters next to each other).
'tense' becomes 't' (abbreviation used in many dictionaries).
'after' says to put letters next to each other.
'snake' becomes 'asp' (asp is a kind of snake).
'ec' put next to 't' is 'ect'.
'ect' put after 'asp' is 'ASPECT'.
Can you help me to learn more?
(Other definitions for aspect that I've seen before include "Vista, panorama" , "Characteristic to be considered" , "Particular or distinct element, of a problem say" , "Distinct part or element" , "Particular part or element, of a problem say" .)