This comes in instalments from Israel (6)
I believe the answer is:
serial
'this comes in instalments' is the definition.
The definition suggests a singular noun which matches the answer.
'from israel' is the wordplay.
'from' indicates an anagram (from the letters).
'israel' with letters rearranged gives 'SERIAL'.
Can you help me to learn more?
(Other definitions for serial that I've seen before include "show" , "Of continuous nature - maybe a killer" , "Story published in parts" , "appearing at regular intervals" , "TV drama in instalments" .)