Answer:

mantle

AnswerCrossword Clue
MANTLECloak
MANTLE1956 Triple Crown winner
MANTLE500 Home Run Club member
MANTLEIt comprises most of the Earth's volume
MANTLE'50s-'60s Yankee slugger
MANTLEHall of Famer Mickey
MANTLEHall of Fame subject of "The Last Boy"
MANTLEIt's beneath the crust
MANTLEIt's a wrap
MANTLEBaseball Hall of Famer Mickey
MANTLESleeveless cloak
MANTLELayer of the earth
MANTLE"The Mick" of baseball
MANTLELate great Yank
MANTLEMickey of the Yankees
MANTLESuccessor to DiMaggio
MANTLEBaseball legend Mickey
MANTLESwitch-hitter with the most career homers
MANTLERunner-up to Maris in '61
MANTLEEarth's middle
MANTLEEarth layer
MANTLEHall of Famer with a .420 on-base percentage
MANTLEYankee legend Mickey
MANTLECloak.
MANTLENew diamond star.
MANTLEA famous Mickey.
MANTLEYankee slugger.
MANTLEWell-known Yankee.
MANTLEYankee star.
MANTLEYankees' center fielder.
MANTLEPowerful switch hitter.
MANTLE"The morn, in russet ... clad . . . "
MANTLEToast of New York.
MANTLEAmerican League's MVP.
MANTLEAnything that conceals.
MANTLEYankee from Oklahoma.
MANTLEBlush.
MANTLEYankee.
MANTLEMickey.
MANTLEFormer slugger