The most common and most likely answer to this crossword clue is the 8 letter word UPPERCUT
I've seen this crossword clue in Independent
U
P
P
E
R
C
U
T
More clues leading to the result UPPERCUT
- Spell of prosperity broken — that’s a blow
- Drug adulterated? That’s a blow
- Drug diluted, which is a blow
- Part of boxer’s repertoire in higher division
- Blow where meal without starter not totally delightful
- Drug reduced, might that hurt?
- Potential knockout’s superior cleavage
- Superior reduced strike
- Blow up a canal
- Evening meal: no starter and keep away from the punch
Buddy explains!

The straight part
We know that "the punch" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case the punch = uppercut.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 UPPERCUT mean?
UPPERCUT noun- A swinging blow aimed upwards at the opponent's chin.
- A cut shot that sends the ball over the wicket-keeper's head.
- To strike with an uppercut