Here are the possible solutions for its two halves can't run simultaneously clue
Answer
Clue
Relevancy
chessclock
Clue
Its two halves can't run simultaneously
inning
Clue
Its two halves usually aren't the same length
Definition
in baseball, an innings, a turn at batting
coral
Clue
Creatures that can't move but have sex by constantly and simultaneously ejaculating on a full moon once a year. It's called "broadcast spawning" and there are videos and they are glorious
Definition
a mass of marine animal skeletons
epee
Clue
Sport in which both competitors can score simultaneously
Definition
(French) a sword similar to the foil but with a larger guard and a heavier blade of triangular cross section
tire
Clue
It can be balanced and biased simultaneously
doublestops
Clue
Plays two notes simultaneously
iggyazalea
Clue
"Fancy" singer featured on "Problem" who in 2014 became the second ever to be simultaneously #1 and #2 with her first two hits: 2 wds.
livecat
Clue
Item in Schrödinger's box (and in this puzzle) that exists in two different states simultaneously
