In Berlin, dainty girl (5)
I believe the answer is:
linda
'girl' is the definition.
'in berlin dainty' is the wordplay.
'in' indicates the answer is hidden within the clue.
'LINDA' can be found hidden inside 'berlin dainty'.
(Other definitions for linda that I've seen before include "lady" , "- Ronstadt, US singer" , "Girl's name (I, not Y)" , "girl" , "-- Gray, 'Dallas' star" .)