Answer the clues below to create four 4-letter words. Then insert the letters of that solution into the appropriate box. Using the same letter four times in the central box, two related 10-letter words can be produced.

The first word reads vertically using the letters from Box A, Box D, and two of the common central letters. The second word reads horizontally using the letters from Box B, Box C, and two of the common central letters.

Puzzle courtesy of Mensa member Peter Hooton