Fits and starts (6)
I believe the answer is:
spasms
This clue could be a double definition.
'fits' is the first definition.
(I've seen this before)
'starts' is the second definition.
Although both the answer and definition are plural nouns, I don't understand how they can define each other.
'and' is the 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" .)