Nominate European member worried by Germany (8)
I believe the answer is:
delegate
'nominate' is the definition.
(thesaurus)
'european member worried by germany' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'member' becomes 'leg' (I've seen this before**).
'worried' becomes 'ate' (something worrying may eat someone up).
'by' says to put letters next to each other.
'germany' becomes 'd' (international vehicle registration code).
'e'+'leg'+'ate'='elegate'
'elegate' after 'd' is 'DELEGATE'.
(Other definitions for delegate that I've seen before include "Pass down for action" , "One represents" , "One representing others" , "Appoint or send as a representative" , "Assign responsibility to - representative" .)