Study, read (6)
I believe the answer is:
peruse
I believe this clue is a double definition.
'study' is the first definition.
(I've seen this in another clue)
'read' is the second definition.
(I've seen this before)
(Other definitions for peruse that I've seen before include "Thoroughly examine" , "Survey" , "Run one's eye over" , "Look over" , "Read attentively" .)