The clue will be limited to 2 words. The answer can be any length, it is NOT restricted to 2 words. If you answer the puzzle correctly you get to provide the next clue.
Lets try to keep the subject material restricted to the major published works that are related to the world of Arda:
The Silmarillion
The Children Of Hurin
The Hobbit
The Lord Of The Rings
The Adventures Of Tom Bombadil
An example to demonstrate the structure:
Clue: Mountain’s heart
Answer:
The Arkenstone (the gem that Thorin was obsessed with in The Hobbit). The Heart Of The Mountain was another name for this gem that was discovered beneath Erebor (the Lonely Mountain) by Thorin’s ancestor, Thrain the Old.
That is a long drawn out answer and all answers do not need to be such, though it is a bit more interesting if you provide more detail than just the bare bones.
I will start things off.
Clue: Star Lake
Shamelessly ripped from the LOTRO Forums at https://www.lotro.com/forums/showthread.php?364996-Two-word-Tolkien-Trivia