Where people study page penned by novelist (6)
I believe the answer is:
campus
'where people study' is the definition.
'page penned by novelist' is the wordplay.
'page' becomes 'p'.
'penned by' means one lot of letters goes inside another.
'novelist' becomes 'camus' (Albert Camus).
'p' inserted inside 'camus' is 'CAMPUS'.
(Other definitions for campus that I've seen before include "Pre-planned college layout and grounds" , "University or college site" , "educational grounds" , "University estate" , "College estate" .)