Possible Clues:

• Animal getting round cat writer, not old
• Marsupial has big problem crossing river
• Pogo, e.g.
• Arboreal marsupial
• Work problem involves very big animal
• Critter playing dead
• American native cooking some soup out East
• No positive amount coming from furry beast!
• Choose to remove tail, so climbing a problem for marsupial
• American native with nothing on, I hesitate to say