The term 'They Often Clash' can be summarized by the crossword solutions of 'Egos' (4 letters). Egos are often seen as the source of conflict between two people, as they can lead to a clash of wills and opinions. This is especially true in situations where two people have strong personalities and are unwilling to compromise. In such cases, the clash of egos can lead to an impasse, with neither party willing to back down.