The most common and most likely answer to this crossword clue is the 9 letter word TIMEPIECE
I've seen this crossword clue in Financial Times
T
I
M
E
P
I
E
C
E
More clues leading to the result TIMEPIECE
- Watch the enemy with a gun!
- Hunter, perhaps still following herb, reportedly
- Where one might see the enemy marching forward?
- Single article on period watch
- Magazine article that could be digital
- Maybe watch mice pee, it’s revolting!
- Magazine article for Apple Watch?
- Watch me cutting it back a bit
- Watch, say, for a magazine article
- Watch, perhaps, to establish length of aria?
Buddy explains!

The straight part
We know that "Watch" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case watch = timepiece.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 TIMEPIECE mean?
TIMEPIECE noun- Any device that measures or registers time; a clock or watch, especially one lacking a chime or other striking mechanism.