European report of border activity? (5)
I believe the answer is:
czech
'european' is the definition.
(Czech is an example)
'report of border activity?' is the wordplay.
'report of' indicates a 'sounds like' (homophone) clue.
'border activity?' becomes 'check' (checks may be carried out at a border).
'check' is a homophone of 'CZECH'.
(Other definitions for czech that I've seen before include "Bohemian" , "European's" , "Nationality of citizen of Prague" , "European language" , "European native" .)