The most common and most likely answer to this crossword clue is the 7 letter word EXHUMED
I've seen this crossword clue in The Guardian
E
X
H
U
M
E
D
Buddy explains!

The straight part
We know that "Dug out" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case dug out = exhumed.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 EXHUMED mean?
EXHUMED verb- To dig out of the ground; to take out of a place of burial; to disinter.
- To uncover; to bring to light.