Fits and starts (6)
I believe the answer is:
spasms
This might be a double definition.
'fits' is the first definition.
(spasm can mean a fit)
'starts' is the second definition.
Although both the answer and definition are plural nouns, I cannot understand how they can define each other.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for spasms that I've seen before include "Tics" , "Convulsions, fits" , "attacks" , "sudden bursts of activity" , "Cramps or contractions" .)