The term 'SNAPPING NEED' can be solved by the crossword solution 'THUMB', which is a five-letter word. The THUMB is the first digit of the human hand and is located on the radial side of the four fingers. It is used for grasping and holding objects, as well as for manipulating objects in ways that cannot be done with the other fingers. The THUMB is also important for fine motor skills, such as typing, writing, and playing musical instruments.