Related Clues:

• It's laid down in mid-teens
• Is hesitantly returning what's owed - this is left
• Rest of tramps having to shelter right scum
• Observe student lifting the dregs
• Refuse to take what belongs to the general
• Waste last quarter of year in sleep
• The rest having to board outside university
• Grounds or pastures, say
• The rest have accommodation around university
• Have house outside university to get rest
• Scum - dregs
• Waste from molten metal
• Grounds - debris
• Waste coal - rubbish
• Something of inferior quality