Set up network attracting European lament (5)
I believe the answer is:
dirge
'lament' is the definition.
('dirge' can be a synonym of 'lament')
'set up network attracting european' is the wordplay.
'set up' says the letters should be written in reverse.
'network' becomes 'grid' (grid is a kind of network).
'attracting european' becomes 'e' (I can't explain this - if you can you should believe this answer much more).
'grid' back-to-front is 'dirg'.
'dirg'+'e'='DIRGE'
Can you help me to learn more?
(Other definitions for dirge that I've seen before include "Threnody" , "Funereal hymn" , "dreary tune" , "lamentable composition" , "Elegy" .)