The Puzzlemaster Presents Vol. 2
Will Shortz
LONG GONE (adapted)

Think of a five-letter word meaning "good at fixing things". Now think of another five-letter word meaning highly unpleasant, crude, or dirty. Put the two words one after the other. The last two letters of the first word overlap as the first two letters of the second word - giving you the name of something that has not existed for more than 1,500 years. What is it?

Answer:

The two words are HANDY and NASTY - HANDYNASTY - HAN DYNASTY