Turns out bank here is about to send head to country in southeast Europe (6)
I believe the answer is:
serbia
'country in southeast europe' is the definition.
'Serbia' can be an answer for 'country' (Serbia is an example). I'm not certain of the 'in southeast europe' bit.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for serbia that I've seen before include "Landlocked Balkan country" , "Raise B in Yugoslavia" , "Rabies in former Yugoslavia" , "Country formerly part of Yugoslavia" , "Braise (anag) - country" .)