The term 'ADDITION TO THE STAFF' can be broken down into three crossword solutions: HIRE (4 letters), HIREE (5 letters), and NOTE (4 letters). HIRE is a verb meaning to engage or employ someone for a job, while HIREE is a noun referring to the person being hired. NOTE is a verb meaning to take notice of or pay attention to something. Together, these words indicate that someone is being added to the staff, either through hiring or being noticed.