Answer:

deadasadoornail

Answer	Crossword Clue
DEADASADOORNAIL	INOPERATIVE
DEADASADOORNAIL	Kaput
DEADASADOORNAIL	Unanimated, to the max

DEADASADOORNAIL	Busted
DEADASADOORNAIL	Completely lifeless
DEADASADOORNAIL	Lifeless
DEADASADOORNAIL	Totally lifeless
DEADASADOORNAIL	Done for
DEADASADOORNAIL	"Old Marley was as ..."
DEADASADOORNAIL	Really gone
DEADASADOORNAIL	Unquestionably gone

DEADASADOORNAIL	Completely out
DEADASADOORNAIL	Definitely deceased
DEADASADOORNAIL	Not just gone
DEADASADOORNAIL	Gone, and never to return
DEADASADOORNAIL	Completely gone
DEADASADOORNAIL	Done for, finito, kaput
DEADASADOORNAIL	Totally gone

Crossword

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