Lullaby setting, and a hint to the starts of 3-, 4-, 9- and 31-Down 7 letters

Crossword clues for Lullaby setting, and a hint to the starts of 3-, 4-, 9- and 31-Down 7 letters:

TREETOP: Lullaby setting, and a hint to the starts of 3-, 4-, 9- and 31-Down