Study sounds of birds avoiding northern part of Europe (11)
I believe the answer is:
scandinavia
'part of europe' is the definition.
(I know that Scandinavia is part of Europe)
'study sounds of birds avoiding northern' is the wordplay.
'study' becomes 'scan' (I've seen this before).
'sounds' becomes 'din' (a din is a noisy disturbance).
'of birds' becomes 'avian' (avian means relating to birds).
'avoiding' indicates named letters should be taken away.
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'avian' with 'n' taken out is 'avia'.
'scan'+'din'+'avia'='SCANDINAVIA'
(Other definitions for scandinavia that I've seen before include "northern lands" , "Norse countries" , "European peninsula" , "North European area" .)