Here are the possible solutions for they have duel purposes clue
Answer
Clue
Relevancy
pistols
Clue
They have duel purposes
Definition
PISTOL, to shoot with a small firearm
sabers
Clue
They have duel purposes
swords
Clue
They have duel purposes
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