Country girl's study (7)
I believe the answer is:
perusal
'study' is the definition.
(I've seen this before)
'country girl's' is the wordplay.
'country' becomes 'peru' (Peru is an example).
'girl' becomes 'sal' (feminine given name).
'peru'+'sal'='PERUSAL'
(Other definitions for perusal that I've seen before include "Careful examination" , "worth a close look" , "Examination, survey" , "Scanning, reading" , "Process of examination" .)