The most common and most likely answer to this crossword clue is the 7 letter word NETTING
I've seen this crossword clue in The Daily Telegraph
N
E
T
T
I
N
G
More clues leading to the result NETTING
Buddy explains!

The straight part
We know that "Making/fishermen’s equipment" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case making/fishermen’s equipment = netting.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 NETTING mean?
NETTING noun- Something that acts as, or looks like, a net.
- Urine
- To catch by means of a net.
- To catch in a trap, or by stratagem.
- To enclose or cover with a net.
- To score (a goal).
- To hit the ball into the net.
- To form network or netting; to knit.
- To receive as profit.
- To yield as profit for.
- To fully hedge a position.