Here are the possible solutions for my strength and my clue
Answer
Clue
Relevancy
callisthenics
Clue
Light exercises for gracefulness, fitness and strength
Definition
exercises designed to achieve gracefulness, fitness and strength, also CALISTHENICS
eras
Clue
Measurements of control and arm strength
Definition
ERA, a main division of geological time
fortitude
Clue
Mental and emotional strength
Definition
strength of mind that enables a person to encounter danger or bear pain or adversity with courage
inner
Clue
Word with child and strength
Definition
interior
iron
Clue
Symbol of strength and power.
Definition
a metallic element
lion
Clue
Sought after celebrity (showing great strength and courage?)
Definition
a large, carnivorous, feline animal
lusty
Clue
Full of strength and energy
Definition
full of vigour
newt
Clue
Gingrich who said "females have biological problems staying in a ditch for thirty days because they get infections and they don't have upper body strength"
Definition
a tailed amphibian of the salamander family, also EWT