The most common and most likely answer to this crossword clue is the 5 letter word HALVE
H
A
L
V
E
More clues leading to the result HALVE
- Labour leader at centre of own split
- Lethal venom bottles split into two
- Healthy to eat vegetarian option that’s cut in two
- Henry V performance finally split into two parts
- Share hole where fool incarcerates fifty
- Robust, guarding against split
- Very healthy wraps cut into two pieces
- Volume in well down by 50%
- Split from husband, heading off to give birth in cowshed
- Five tucked into healthy share
Buddy explains!

The straight part
We know that "split" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case split = halve.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 HALVE mean?
HALVE verb- To reduce to half the original amount.
- To divide into two halves.
- To make up half of.
- To join two pieces of timber etc. by cutting away each for half its thickness at the joining place, and fitting together.
- In match play, to achieve a tie or draw on.