Developed new material with European brought to fore (6)
I believe the answer is:
ensued
'developed' is the definition.
The definition and answer can be both to do with fundamental existence as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'new material with european brought to fore' is the wordplay.
'new' becomes 'n'.
'material with' indicates anagramming the letters (the letters provide the material for a new word).
'european' becomes 'e' (abbreviation e.g. EU).
'brought to' is a charade indicator (letters next to each other).
'fore' becomes 'sued' (I can't justify this - if you can you should believe this answer much more).
'n' with its letters anagrammed with 'e' gives 'en'.
'en'+'sued'='ENSUED'
Can you help me to learn more?
(Other definitions for ensued that I've seen before include "Happened in consequence" , "Followed as a consequence" , "Resulted, followed" , "Occurred afterwards" , "Happened afterwards or as a result" .)