Possible Clues:

• The man who would take stock of other guys
• He stole cattle in the old west
• The criminal that makes little of 3 down
• A neat thief, but a noisy one
• The thief that makes little that's sound in the leaves
• The beastly thief makes little noise
• Dishonest stocktaker
• Stocktaker's loss, for a start, in something corroding
• Specialist in stock­taking?
• One who steals cattle or horses