What term describes a religious singer who assists clergy, especially in the Jewish faith?

The term that accurately describes a religious singer who assists clergy, especially within the Jewish faith, is "Cantor." In Jewish tradition, a cantor, or "hazzan" in Hebrew, serves a key role in leading prayers and chanting sacred texts during services. The cantor is responsible for enhancing the worship experience through their vocal skill, embodying a musical and spiritual guide for the congregation.

While "hazzan" also refers to the same role in Hebrew, the standard term commonly recognized in English is "cantor." This role extends not only to Jewish services but has been adopted in various other religious contexts, reinforcing the importance of music in worship.

The other options, such as "Choir Leader," focus more on directing a choir rather than the specific liturgical function of leading prayers and singing in a religious context. "Liturgist" typically refers to one who is involved in the planning and preparation of worship services, not necessarily focused on singing or chanting. Thus, the "Cantor" is the most precise term for the role described in the question.