Answer:

ninth

AnswerCrossword Clue
NINTHLike the last complete symphony of Gustav Mahler
NINTHFinish on a diamond?
NINTHLike I Samuel among the books of the Old Testament
NINTHInning for closers
NINTHBottom of the ...
NINTHBruckner's last symphony
NINTHNew York's General Post Office is on it