Here are the possible solutions for they have sharp tongues clue
Answer
Clue
Relevancy
shrews
Clue
They have sharp tongues
needlers
Clue
People with sharp tongues
Definition
NEEDLER, a needle-maker
insoles
Clue
They're found under tongues
Definition
INSOLE, the inner sole of a shoe or boot
laces
Clue
They're found above tongues
Definition
LACE, to draw together two edges with a cord
uvulae
Clue
They're found over tongues
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