The most common and most likely answer to this crossword clue is the 4 plus 2 plus 3 plus 3 letter word HAIR OF THE DOG
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More clues leading to the result HAIR OF THE DOG
- Hangover cure left on floor of kennel?
- Her good faith sorted out answer to alcohol problem?
- Hangover cure deposited on kennel floor?
- Potential cure for sickness that’s found in lab coat?
- Do high tea for drunk, as a cure for a hangover
- Drink or fibrous material that may spoil settee?
- Rover’s Return? Here’s a consequence or two!
- Hangover cure is one of many carried by man’s best friend
- For example, setter’s warmer breakfast-time drink?
- Hangover cure that’s taken from best friend’s coat
Buddy explains!

The straight part
We know that "Fabled curative which may be plucked from lab?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fabled curative which may be plucked from lab? = hair of the dog.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.