The most common and most likely answer to this crossword clue is the 6 letter word DUGOUT
I've seen this crossword clue in The Guardian
D
U
G
O
U
T
More clues leading to the result DUGOUT
- Trench expected shortly to get disease
- Primitive canoe discovered after search
- Canoe found
- Fortification brought to light by archaeologist?
- Place for coach‘s rudimentary craft
- Soldiers in the trenches did this craft
- Shelter a bit exposed
- Cavity resulting from some French disease
- Excavated wooden craft
- Found shelter
Buddy explains!

The straight part
We know that "Trench" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case trench = dugout.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 DUGOUT mean?
DUGOUT noun- A canoe made from a hollowed-out log.
- A pit dug into the ground as a shelter, especially from enemy fire.
- A sunken shelter at the side of a baseball or football (soccer) field where non-playing team members and staff sit during a game.
- A device used to smoke marijuana.
- A pit used to catch and store rainwater or runoff.