The most common and most likely answer to this crossword clue is the 5 letter word SPRIT
I've seen this crossword clue in Financial Times
S
P
R
I
T
Buddy explains!
The straight part
We know that "Pole" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pole = sprit.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 SPRIT mean?
SPRIT noun- A spar between mast and upper outer corner of a spritsail on sailing boats.
- A shoot; a sprout.
- To sprout; to bud; to germinate, as barley steeped for malt.
- To throw out with force from a narrow orifice; to eject; to spurt out.