The most common and most likely answer to this crossword clue is the 3 plus 3 letter word TRY OUT
T
R
Y
O
U
T
More clues leading to the result TRY OUT
- Go away for trial
- Experiment with fish stuffed with thyme in the middle
- Fish around end of jetty as test
- Crack revealed in test
- Test fish over year
- Sample fish, including last of blenny
- Go away and experiment
- Test fish nets back in laboratory
- Salesman taking railway test
- Having toured railway, promote test drive
Buddy explains!

The straight part
We know that "test" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case test = try out.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 TRY OUT mean?
TRY OUT noun- A test of the suitability or effectiveness of a person or thing, especially of a performer or athlete (an audition)