Yes, At Home in Mitford by Jan Karon is a clean book.

Father Tim, the bachelor rector of a small mountain parish, wants for nothing — until a dog the size of a sofa moves in uninvited, an intriguing neighbor starts wearing a path through the hedge, and a lonely boy and a decades-old secret upend his quiet life. The first novel in Jan Karon's beloved Mitford series: gentle, funny, small-town comfort reading.