The most common and most likely answer to this crossword clue is the 5 letter word CABER
I've seen this crossword clue in The Daily Telegraph
C
A
B
E
R
More clues leading to the result CABER
- Brace specially, to toss this?
- Something tossed to erstwhile president interrupting erstwhile monarch
- Something of a tosser?
- Lie in vehicle’s trunk
- Get a bit of a sore back tossing it?
- Pole thrown from vehicle sheltering to live
- Taxi driver’s bottom pierced by tip of elephant trunk
- It’s tossed about, about bowled over
- In romantic Aberdeen, requirement for Highland fling?
- At Highland Games one’s required to stay in vehicle
Buddy explains!

The straight part
We know that "It’s tossed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it’s tossed = caber.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 CABER mean?
CABER noun- A long, thick log held upright at one end and tossed in the Highland games.