Coming back from Sarajevo, ballerina's in heaven (5)
I believe the answer is:
above
'in heaven' is the definition.
(I've seen this in another clue)
'coming back from sarajevo ballerina's' is the wordplay.
'coming back' says the letters should be written in reverse.
'from' says the answer is hidden in the clue.
'evoba' can be found hidden inside 'sarajevo ballerinas'.
'evoba' reversed gives 'ABOVE'.
(Other definitions for above that I've seen before include "Break into pieces" , "Aloft" , "On top of" , "Too good for" , "Position of the heavens!" .)