The most common and most likely answer to this crossword clue is the 7 letter word SAMPLER
I've seen this crossword clue in The Daily Telegraph
S
A
M
P
L
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R
More clues leading to the result SAMPLER
- Society more generous providing DJ’s equipment
- A bit from the sewer?
- Specimen from sewer more than enough to stop sister
- Singer on vacation must carry more than enough music equipment
- Sister keeps copious specimen collection
- Start to sew more extensive piece of embroidery
- Piece of embroidery is small, getting bigger
- Sister carrying adequate test-piece
- He has a taste for a bit of embroidery
- Maples, nuts, and berry filling in a box of assorted chocolates
Buddy explains!

The straight part
We know that "music equipment" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case music equipment = sampler.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 SAMPLER mean?
SAMPLER noun- A piece of needlework embroidered with a variety of designs.
- Someone whose job is to take samples.
- A device that takes samples.
- A digital device that records or merges together samples of recordings.
- A representative selection of a larger group.