Crossword puzzle clue "like many a retreat"

Like many a retreat

Speaker at many a corporate retreat

Works like my short story where Legolas, Katniss, and I develop a messy psychosexual three-way relationship at an archery retreat in upstate New York

Tranquil, like a cloudless day at a seaside retreat

Many, many, many

Many, many, many

You've likely heard it many many many times before

Religious retreat