The term LARGE TREE SHREW can be broken down into two crossword solutions: TANA (4 letters) and LARGE (6 letters). TANA is a genus of tree shrews, which are small mammals native to Southeast Asia. They are omnivorous and have long tails and soft fur. The genus Tana includes the largest species of tree shrews, which can reach up to 20 cm in length. LARGE is an adjective meaning of considerable size or extent. Therefore, the term LARGE TREE SHREW refers to a species of tree shrew that is larger than average.