Isn’t her gentlest characteristic material resistance? (7,8)
I believe the answer is:
tensile strength
'isn't her gentlest characteristic material resistance?' is the definition.
I can't tell whether this defines the answer.
'isn't her gentlest characteristic material resistance?' is the wordplay.
'isn't her gentlest' can be anagrammed to 'TENSILE STRENGTH'.
But, I am unsure how this is indicated.
Can you help me to learn more?
(Another definition for tensile strength that I've seen is " resistance at the point of breaking".)