The most common and most likely answer to this crossword clue is the 8 letter word UPTHROWN
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Buddy explains!

The straight part
We know that "vomit-like" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case vomit-like = upthrown.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.
Crossword Answer definitions
UPTHROWN verb- To throw or cast upwards.
- To throw up (a mass of material) from below, causing a fault.
- (of a mass of material) To be thrown up from below, causing a fault.