Related Clues:

• Read up on
• Something to do at a library
• Clue room
• Prepare for a test
• Cram, perhaps
• Room in Clue
• Prepare for a quiz
• Book-lined room
• Preliminary drawing
• Study intensively, for an exam say
• Duty's one for work there
• Painter's practice piece
• See 11
• Research boss unknown
• Den - learning