The clues refer to four-letter words that can be entered in each 2×2 area of the grid in such a way that the words are all written counter-clockwise and the blue highlighted squares contain the vowels and the white squares the consonants.
|To run, or a small amount||DASH|
|Candy or sugar||CANE|
|Popular computer manufacturer||DELL|
|One who cleans a house||MAID|
|A conclusion, with end||TAIL|
|To encourage or push someone||SPUR|
|51 has aliens?||AREA|
|A hiking accessory||TENT|
The outer edge reads, in clockwise order, the phrase ADJACENT LETTERS RULES. Applying the rules of the Adjacent Letters module yields the letters circled in red. The outer ring was already used; the next-inner ring contains the solution in counter-clockwise order (the order the four-letter words were entered).