The most common and most likely answer to this crossword clue is the 6 letter word TARGET
I've seen this crossword clue in The Times
T
A
R
G
E
T
More clues leading to the result TARGET
- Object sailor has to receive
- Mark sailor has to achieve
- Sailor needing to achieve objective
- Accompanying sailor, attain goal
- Shoot at wretch knocked over by cop
- Times covering row – with United missing goal
- Misrepresent Greta Thunberg’s principal goal
- Archer’s aim: prostitute, say, back inside?
- Empty gesture found in the heart of spiteful victim
- Strike breaker goes back to achieve objective
Buddy explains!

The straight part
We know that "objective" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case objective = target.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 TARGET mean?
TARGET noun- A butt or mark to shoot at, as for practice, or to test the accuracy of a firearm, or the force of a projectile.
- A goal or objective.
- A kind of small shield or buckler, used as a defensive weapon in war.
- A shield resembling the Roman scutum, larger than the modern buckler.
- A bearing representing a buckler.
- The pattern or arrangement of a series of hits made by a marksman on a butt or mark.
- The sliding crosspiece, or vane, on a leveling staff.
- A conspicuous disk attached to a switch lever to show its position, or for use as a signal.
- The number of runs that the side batting last needs to score in the final innings in order to win
- The tenor of a metaphor.
- The translated version of a document, or the language into which translation occurs.
- A person (or group of people) that a person or organization is trying to employ or to have as a customer, audience etc.
- A thin cut; a slice; specifically, of lamb, a piece consisting of the neck and breast joints.
- A tassel or pendant.
- A shred; a tatter.
- To aim something, especially a weapon, at (a target).
- To aim for as an audience or demographic.
- To produce code suitable for.