European gesture shows passion (7)
I believe the answer is:
emotion
'passion' is the definition.
(passion can mean great emotion)
'european gesture' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'gesture' becomes 'motion' (synonyms).
'e'+'motion'='EMOTION'
'shows' is the link.
(Other definitions for emotion that I've seen before include "Mental agitation" , "Feeling of joy, love, hate etc" , "Passion" , "E.g. fear, hate etc." , "Strong desire" .)