The most common and most likely answer to this crossword clue is the 2 plus 6 letter word ON REMAND
I've seen this crossword clue in The Daily Telegraph
O
N
R
E
M
A
N
D
More clues leading to the result ON REMAND
- One Mr Bad also awaiting trial
- Performing with rock band; also awaiting trial.
- In custody as required, having run for days
- Criminal Roman den being held before trial
- Working staff in debt awaiting court’s decision?
- Performing with US rock group, also inside awaiting a hearing
- Daughter, after working over staff, is held pending a hearing
- No turning back concerning fellow with diamonds awaiting trial
Buddy explains!

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