Expected a girl to turn up with a governess (6)
I believe the answer is:
duenna
'a governess' is the definition.
(thesaurus)
'expected a girl to turn up' is the wordplay.
'expected' becomes 'due' (I've seen this before).
'a girl' becomes 'ann' (**).
'to turn up' says the letters should be written backwards.
'ann' written backwards gives 'nna'.
'due'+'nna'='DUENNA'
'with' acts as a link.
(Other definitions for duenna that I've seen before include "Female chaperone" , "Woman chaperon in Hispanic countries" , "Chaperon to young girl in Spain" , "Chaperone in Madrid" , "governess in Spain" .)