Very long shot by European (4)
I believe the answer is:
epic
'very long' is the definition.
(I've seen this before)
'shot by european' is the wordplay.
'shot' becomes 'pic' (short for picture).
'by' says to put letters next to each other.
'european' becomes 'E' (abbreviation e.g. EU).
'pic' put after 'e' is 'EPIC'.
(Other definitions for epic that I've seen before include "great film" , "On a grand scale, maybe a poem" , "Long classic film" , "Surpassing the ordinary" , "Long literary work about great events" .)