Answer: tither

AnswerCrossword Clue
TITHERChurch supporter
TITHERCollector of tenth part.
TITHERGiver of a tenth
TITHERDevout Mormon, e.g.
TITHER10% giver
titherone that tithes (to pay a tenth part used as a small tax, also TYTHE)
titherperson who advocates payment of tithes
titherperson who collects tithes
titherperson who gives or pays tithes, as to a church