Answer: prosed

AnswerCrossword Clue
PROSEDWrote in tedious fashion.
PROSEDSpoke in a dull manner.
PROSEDWrote a novel, e.g.
PROSEDWrote an essay, say
PROSEDDid ordinary writing
prosedPROSE, to write without metrical structure
prosedwrite or speak in a dull or ordinary manner
prosedto write prose