Related Clues:

• Stack of papers
• Chunk of change
• Accumulate (with ''up'')
• Inbox accumulation
• Shag carpet feature
• It may be down
• Large stack
• Carpet's characteristic
• Leaf collection
• Accumulate (with "up")
• Atomic reactor
• Professional organizer's target, maybe
• Load of loot
• Feature of a dirty desk
• Quite a tidy sum