Here are the possible solutions for have staying power clue
Answer
Clue
Relevancy
endure
Clue
Have staying power
Definition
to last
last
Clue
Have staying power
Definition
coming after all others in sequence
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