The most common and most likely answer to this crossword clue is the 5 plus 5 letter word PUNCH DRUNK
P
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N
C
H
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K
More clues leading to the result PUNCH DRUNK
Buddy explains!
The straight part
We know that "having taken one too many" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having taken one too many = punch drunk.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 PUNCH DRUNK mean?
PUNCH DRUNK adjective- Dizzy or confused due to repeat blows to the head.
- Behaving in a bewildered, or dazed manner.