Series going into quite miserable detail (7)
I believe the answer is:
itemise
'series going' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'into quite miserable detail' is the wordplay.
'into' says the answer is hidden in the clue.
'ITEMISE' is hidden within 'quite miserable detail'.
Can you help me to learn more?
(Other definitions for itemise that I've seen before include "Make a list" , "Read off list of things one by one" , "List out singly" , "Enumerate" , "List each thing separately" .)