"Tolkien's Forest," by George Jasper

Constructor's Comments

This puzzle started out as something more than simply adding ENT to the ends of the theme entries.  I had originally hoped to tie ENT into the theme entry GIANT in the middle row as referenced in The Lord of the Rings and clued as "Like the Tolkienian forest added to the ends of 3-, 5-, 15- and 28-Down" but had some trouble incorporating acceptable surrounding fill words.

David was able to hint at the ENT theme entries by adding a very nice puzzle title that describes the sense of the puzzle without giving too much away.