The most common and most likely answer to this crossword clue is the 5 letter word HITCH
I've seen this crossword clue in Independent
H
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More clues leading to the result HITCH
Buddy explains!

The straight part
We know that "Yank" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case yank = hitch.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 HITCH mean?
HITCH noun- A sudden pull.
- Any of various knots used to attach a rope to an object other than another rope.
- A fastener or connection point, as for a trailer.
- A problem, delay or source of difficulty.
- A hidden or unfavorable condition or element; a catch.
- A period of time spent in the military.
- To pull with a jerk.
- To attach, tie or fasten.
- To marry oneself to; especially to get hitched.
- Contraction of hitchhike, to thumb a ride.
- To become entangled or caught; to be linked or yoked; to unite; to cling.
- To move interruptedly or with halts, jerks, or steps; said of something obstructed or impeded.
- To strike the legs together in going, as horses; to interfere.