I am about to study young woman (6)
I believe the answer is:
maiden
'young woman' is the definition.
(I know that maiden is a type of young woman)
'i am about to study' is the wordplay.
'about' says the letters should be written backwards.
'to study' becomes 'den' (term for a study or office).
'i'+'am'='iam'
'iam' back-to-front is 'mai'.
'mai'+'den'='MAIDEN'
(Other definitions for maiden that I've seen before include "First ever public address" , "Dotty over" , "Female" , "Miss" , "Unmated; runless over" .)