Accurate summary by European (7)
I believe the answer is:
precise
'accurate' is the definition.
(I know that accurate can be written as precise)
'summary by european' is the wordplay.
'summary' becomes 'precis' (precis is a kind of summary).
'by european' becomes 'e' (abbreviation e.g. EU. I am not sure about the 'by' bit.).
'precis'+'e'='PRECISE'
Can you help me to learn more?
(Other definitions for precise that I've seen before include "with accuracy" , "Specific" , "Exact like recipes" , "Express" , "Detailed, exact" .)