A Balkan resident embracing British circus performer (7)
I believe the answer is:
acrobat
'circus performer' is the definition.
(I've seen this before)
'a balkan resident embracing british' is the wordplay.
'balkan resident' becomes 'croat' (person from Croatia).
'embracing' is an insertion indicator.
'british' becomes 'b' (abbreviation e.g. in 'BBC').
'croat' enclosing 'b' is 'crobat'.
'a'+'crobat'='ACROBAT'
(Other definitions for acrobat that I've seen before include "Athletic Circus Performer" , "Rope-dancer" , "One appearing head over heels" , "Spectacular gymnast" , "Performer going head over heels?" .)