The most common and most likely answer to this crossword clue is the 8 letter word DETAILED
I've seen this crossword clue in Financial Times
D
E
T
A
I
L
E
D
More clues leading to the result DETAILED
- Comprehensive behind in achievement
- Comprehensive selected for special duty
- Last part in document, thorough
- Retired woman and man selected for special duty
- I ntricate – like Three Blind Mice?
- Exhaustive conclusion in legal document
- Private eye probing exploit is thorough
- Giving full particulars of a notable achievement involving the weaker batsmen
- Assigned a job — it’s comprehensive
- Comprehensive education’s flipping pursued
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does DETAILED mean?
DETAILED verb- To explain in detail.
- To clean carefully (particularly of road vehicles) (always pronounced. /ˈdiːteɪl/)
- To assign to a particular task
- Characterized by attention to detail and thoroughness of treatment.