Noise at gathering somewhere in Europe (7)
I believe the answer is:
estonia
'somewhere in europe' is the definition.
(European nation)
'noise at gathering' is the wordplay.
'gathering' indicates anagramming the letters (letters gathered in a new way).
'noise'+'at'='noiseat'
'noiseat' with letters rearranged gives 'ESTONIA'.
(Other definitions for estonia that I've seen before include "One of the Baltic States" , "Republic in northeastern Europe" , "Land" , "Baltic state" , "Nation" .)