The most common and most likely answer to this crossword clue is the 3 letter word WAR
W
A
R
More clues leading to the result WAR
- County, in short, that’s declared?
- Action English novelist mentioned
- Duke abandoning minor conflict
- Result of being not prepared to back away?
- Take up bloody fight
- Author spoken of one aspect of Tolstoy's epic
- Not prepared for revolution, or major conflict
- Inexperienced in retreat in combat
- A lot of heated conflict
- Overcooked? Not at all
Buddy explains!

The straight part
We know that "fight" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fight = war.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 WAR mean?
WAR noun- Organized, large-scale, armed conflict between countries or between national, ethnic, or other sizeable groups, usually involving the engagement of military forces.
- A particular conflict of this kind.
- (by extension) Any conflict, or anything resembling a conflict.
- Instruments of war.
- Armed forces.
- A particular card game for two players, notable for having its outcome predetermined by how the cards are dealt.
- To engage in conflict (may be followed by "with" to specify the foe).
- To carry on, as a contest; to wage.