The most common and most likely answer to this crossword clue is the 9 letter word OBJECTIVE
I've seen this crossword clue in The Guardian
O
B
J
E
C
T
I
V
E
More clues leading to the result OBJECTIVE
- Fair point!
- Aim to be free of prejudice?
- You might be in this case, not I
- Voice complaint leading to Nutmeg’s end
- Aim for the thing Gordius has?
- Mind busy place overlooking hotel? That’s the aim
- Impartial in case? That’s an aim
- Not emotionally involved in the end
- Aim to be dispassionate
- Dispassionate victim to be beheaded
Buddy explains!

The straight part
We know that "this case" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this case = objective.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 OBJECTIVE mean?
OBJECTIVE noun- A material object that physically exists.
- A goal that is striven for.
- (grammar) The objective case.
- (grammar) a noun or pronoun in the objective case.
- The lens or lenses of a camera, microscope, or other optical device closest to the object being examined.
- Of or relating to a material object, actual existence or reality.
- Not influenced by the emotions or prejudices.
- Based on observed facts.
- (grammar) Of, or relating to a noun or pronoun used as the object of a verb.
- (grammar) Of, or relating to verbal conjugation that indicates the object (patient) of an action. (In linguistic descriptions of Tundra Nenets, among others.)