Answer:

muffle

Answer	Crossword Clue
MUFFLE	Deaden, as sound
MUFFLE	Wrap to keep warm
MUFFLE	Reduce in volume

MUFFLE	Deaden the sound of
MUFFLE	Dampen, as noise
MUFFLE	Keep down, as sound
MUFFLE	Silence.
MUFFLE	Smother, as sound
MUFFLE	Repress
MUFFLE	Squelch
MUFFLE	Make obscure

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.