The most common and most likely answer to this crossword clue is the 6 letter word BOWYER
I've seen this crossword clue in The Sunday Telegraph
B
O
W
Y
E
R
More clues leading to the result BOWYER
- In boudoir, Henry finally prepared for Agincourt? He did
- Arms manufacturer to show respect to retiring Spanish king
- Fletcher’s partner creating material for The Archers?
- Robin Hood’s supplier ending in jeopardy in woodland retreat
- In her private room, close to Jeffrey Archer
- Weapons manufacturer has cut hole around bent yew
- Originally, birch or yew proving flexible for old weapons manufacturer
Buddy explains!

The straight part
We know that "old weapons manufacturer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case old weapons manufacturer = bowyer.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 BOWYER mean?
BOWYER noun- A person who makes or sells bows (for use with arrows).
- A person who uses the bow, an archer.