The most common and most likely answer to this crossword clue is the 11 letter word BROOMSTICKS
I've seen this crossword clue in The Guardian
B
R
O
O
M
S
T
I
C
K
S
Buddy explains!
The straight part
We know that "hag-ridden Poles" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case hag-ridden poles = broomsticks.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 BROOMSTICKS mean?
BROOMSTICKS noun- The handle of a broom (sweeping tool).
- A broom imbued with magic, enabling one to fly astride the handle.
- Like plain broom, a gun.