The most common and most likely answer to this crossword clue is the 6 letter word ROWING
I've seen this crossword clue in The Daily Telegraph
R
O
W
I
N
G
More clues leading to the result ROWING
- Sport in dispute
- Boasting when leading Conservative is ousted and getting into an argument
- In boxing arena, I’ve taken a painful blow for sport!
- Run outside arguing
- Sparring, a form of strenuous exercise
- Fighting sport
- Falling out on the lake?
- Arguing in line in front of gymnasium
- Having a tiff in a skiff?
- Water sport sparking fights
Buddy explains!

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 ROWING mean?
ROWING verb- To propel (a boat or other craft) over water using oars.
- To transport in a boat propelled with oars.
- To be moved by oars.
- To argue noisily
- The action of the verb to row.
- The action of propelling a boat with oars.
- The rowing of boats as a competitive sport.
- The act of having a row, or argument.