The most common and most likely answer to this crossword clue is the 7 letter word QUARREL
I've seen this crossword clue in The Times
Q
U
A
R
R
E
L
More clues leading to the result QUARREL
- Argument that has a point
- Jangle in the old way as Queen related
- Archers’ item producing disagreement
- Pane of glass in row
- Scrap arrow
- Falling out could produce equal rights
- Condemned equal rights dispute
- Fall out from missile
- A bishop brought in to suppress endless feud
- Fight arranged between that Parisian and student
Buddy explains!

The straight part
We know that "Argument" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case argument = quarrel.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 QUARREL mean?
QUARREL noun- A verbal dispute or heated argument.
- A ground of dispute or objection; a complaint.
- An earnest desire or longing.
- To disagree.
- To contend, argue fiercely, squabble.
- To find fault; to cavil.
- To argue or squabble with.
- A diamond-shaped piece of coloured glass forming part of a stained glass window.
- A square tile; quarry tile.
- A bolt or arrow for a crossbow, traditionally with the head square in its cross section.
- A small opening in window tracery, of which the cusps etc. make the form nearly square.
- A four-sided cutting tool or chisel with a diamond-shaped end.