The most common and most likely answer to this crossword clue is the 5 letter word KEDGE
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More clues leading to the result KEDGE
Buddy explains!

The straight part
We know that "Pull" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pull = kedge.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 KEDGE mean?
KEDGE noun- A small anchor used for warping a vessel; also called a kedge anchor.
- A glutton.
- To warp (a vessel) by carrying out a kedge in a boat, dropping it overboard, and hauling the vessel up to it.
- (of a vessel) To move with the help of a kedge, as described above.