Crossword puzzle clue "dark to a poet"

Source of "Say! In the dark? Here in the dark! Would you, could you, in the dark?"

"It builds strong bones, but who cares in this dark, dark world..."

Dark as dark can be

Dark purplish-brown to dark red

"Dark Summer" poet Louise

Poet who wrote "In the middle of the journey of our life I came to myself within a dark wood where the straight way was lost"

Dark, to a poet

Dark time for a poet