Answer: spellbinder

AnswerCrossword Clue
SPELLBINDERCompelling speaker
SPELLBINDEREnthralling orator, e.g.
SPELLBINDEROrator.
SPELLBINDERLabor Day orator, perhaps
SPELLBINDERBig hit on the lecture circuit
SPELLBINDERA dynamic speaker, e.g.
SPELLBINDERExcellent speaker
spellbinderSPELLBIND, to bind by or as by a spell