Liberal following European vote, for instance (7)
I believe the answer is:
example
'instance' is the definition.
('example' can be a synonym of 'instance')
'liberal following european vote' is the wordplay.
'liberal' becomes 'ample' (I've seen this before**).
'following' is a charade indicator (letters next to each other).
'european' becomes 'e' (abbreviation e.g. EU).
'vote' becomes 'x' (how votes are marked).
'e'+'x'='ex'
'ample' put after 'ex' is 'EXAMPLE'.
'for' acts as a link.
(Other definitions for example that I've seen before include "Paradigm or model" , "not the actual version" , "Fact that illustrates a general rule" , "warning" , "Model - instance" .)