The most common and most likely answer to this crossword clue is the 6 letter word BICKER
B
I
C
K
E
R
Buddy explains!
The straight part
We know that "Argue" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case argue = bicker.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 BICKER mean?
BICKER noun- A skirmish; an encounter.
- A fight with stones between two parties of boys.
- A wrangle; also, a noise, as in angry contention.
- The process by which selective eating clubs at Princeton University choose new members.
- To quarrel in a tiresome, insulting manner.
- To brawl or move tremulously, quiver, shimmer (of a water stream, light, flame, etc.)
- (of rain) To patter.
- To skirmish; to exchange blows; to fight.
- A wooden drinking-cup or other dish.