Answer:
Railroad Crossing, look out for the cars. Can you spell that, without any R's?
What word has kst in the middle, in the beginning, and at the end?
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
What can you lose that will cause other people to lose theirs too?
When you buy me I am costly, but the only use I have is hanging only. What am I?
Some try to hide some try to cheat. But time will show we always will meet. Try as you might to guess my name. I promise you'll know when you I do claim.