Remit of coroner’s query initially unites different cases (7)
I believe the answer is:
inquest
'remit of coroner's' is the definition.
I can't tell whether this defines the answer.
'query initially unites different cases' is the wordplay.
'initially' says to take the initial letters.
'different' indicates anagramming the letters.
'cases' means one lot of letters goes inside another.
The first letter of 'query' is 'q'.
'unites' is an anagram of 'inuest'.
'q' going into 'inuest' is 'INQUEST'.
Can you help me to learn more?
(Other definitions for inquest that I've seen before include "Coroner's meeting" , "Coroner's jury" , "Judicial inquiry" , "Investigation by coroner" , "Coroner's case" .)