Answer: mettle

AnswerCrossword Clue
METTLE

Fortitude

METTLE

Heart

METTLE

Inner fiber

METTLE
Valor
METTLE
Courage and fortitude
METTLEPluck
METTLESpunk
METTLEFiber
METTLECourage to carry on
METTLEStrength of spirit
METTLEMoxie
METTLEIt's tested in battles
METTLECourage
METTLEGrit
METTLEStrength of character
METTLEConstitution
METTLEGumption
METTLECourage.
METTLESpunk or spirit.
METTLESpirit.
METTLEBackbone.
METTLEInner strength
METTLESpirit
METTLECourage; spirit
METTLEStamina
METTLESpirit; courage
METTLEFighting spirit
METTLENerve
METTLEIt's shown in battle