The following words share an unusual quality. Can you determine what it is?

RING

TOPS

EARTH

ANGER

OUGHT

MANATEE

WINDLESS

HINT:

It has to do with moving letters.

Answer:

By moving the last letter of each clue to the front, a new word is formed:

GRIN

SPOT

HEART

RANGE

TOUGH

EMANATE

SWINDLES