The most common and most likely answer to this crossword clue is the 7 letter word MARTIAL
I've seen this crossword clue in The Times
M
A
R
T
I
A
L
More clues leading to the result MARTIAL
- Warlike officer, we hear
- Following marriage, one moved elsewhere — being inclined to fight?
- Armed forces' police chief from US mentioned
- In speech, officer is hawk-like
- Bellicose poet of ancient times
- About marriage, when it turns belligerent
- Reported US police chief as belligerent
- False alarm — it is related to war
- Warlike officer given hearing
- Military poet of ancient Rome
Buddy explains!

The straight part
We know that "Warlike" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case warlike = martial.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 MARTIAL mean?
MARTIAL noun- A person under the astrological influence of the planet Mars.
- An inhabitant of the planet Mars.
- A soldier, a warrior.
- A celestial object under the astrological influence of the planet Mars.
- Of, relating to, or suggestive of war; warlike.
- Connected with or relating to armed forces or the profession of arms or military life.
- Characteristic of or befitting a warrior; having a military bearing; soldierly.
- Pertaining to the astrological influence of the planet Mars.
- Of or relating to the planet Mars; Martian.
- Containing, or relating to, iron (which was symbolically associated with the planet Mars by alchemists); chalybeate, ferric, ferrous.