The most common and most likely answer to this crossword clue is the 5 plus 3 letter word TRIAL RUN
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More clues leading to the result TRIAL RUN
- Lieutenant holding show got up and organised rehearsal
- . Hearing range in rehearsal
- Officer holding show got up and organised rehearsal
- Attempt to hurry through rehearsal
- The ultimate in counterfeit Eastern currency – conduct test
- Resistance during ritual shaken by new test
- Pilot takes learner through air turn manoeuvre
- Manage after suffering in rehearsal
- Hearing score in rehearsal
- Suffering leak in experiment
Buddy explains!

The straight part
We know that "rehearsal" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rehearsal = trial run.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.