Attorney framing European legislation concerning US state (8)
I believe the answer is:
delaware
'us state' is the definition.
(Delaware is a state of the USA)
'attorney framing european legislation concerning' is the wordplay.
'attorney' becomes 'DA' (abbreviation for District Attorney).
'framing' means one lot of letters goes inside another (inserted letters are framed by the outside letters).
'european' becomes 'E' (abbreviation e.g. EU).
'legislation' becomes 'law' (I've seen this before).
'concerning' becomes 're' (both can mean on a particular topic).
'e'+'law'='elaw'
'da' going around 'elaw' is 'delawa'.
'delawa'+'re'='DELAWARE'
(Other definitions for delaware that I've seen before include "Second smallest US state" , "State of eastern US" , "Atlantic state of the US" , "state of the east" , "NE US state" .)