The most common and most likely answer to this crossword clue is the 8 letter word LADDERED
I've seen this crossword clue in The Times
L
A
D
D
E
R
E
D
More clues leading to the result LADDERED
Buddy explains!

The straight part
We know that "Ran" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ran = laddered.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 LADDERED mean?
LADDERED verb- To arrange or form into a shape of a ladder.
- To ascend (a building, a wall, etc.) using a ladder.
- Of a knitted garment: to develop a ladder as a result of a broken thread.
- (of tights, stockings, etc) Having a ladder in them.