The most common and most likely answer to this crossword clue is the 4 plus 3 letter word LOOK SEE
I've seen this crossword clue in The Daily Telegraph
L
O
O
K
S
E
E
More clues leading to the result LOOK SEE
Buddy explains!

The straight part
We know that "A butcher’s" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a butcher’s = look see.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 LOOK SEE mean?
LOOK SEE noun- A brief examination, a peek or glance.
- A person who serves as lookout or scout.
- An audition attended by an actor or model so that they can be visually appraised.
- To make a quick inspection, especially as a lookout or scout.