Here are the possible solutions for they don't have calves clue
Answer
Clue
Relevancy
heifers
Clue
They don't have calves
Definition
HEIFER, a young cow that has had no more than one calf
whales
Clue
They have very big calves
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
achillestendons
Clue
They help move calves
lassos
Clue
They may be seen around calves
Definition
LASSO, to catch with a long rope with a running noose, also LARIAT, LAZO
bergs
Clue
Little ones are calves
Definition
BERG, (South African) a hill or mountain in S. Africa
