The most common and most likely answer to this crossword clue is the 4 plus 10 letter word WIND INSTRUMENT
I've seen this crossword clue in The Sunday Telegraph
W
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More clues leading to the result WIND INSTRUMENT
- Nun's midwinter revels involving tango and saxophone?
- Topless 2 say victory, how not to play it and somehow intend to cover that
- Serpent for instance to coil up on apparatus
- Left about half of dinner behind at home, to play guitar or sax?
- New tin drum isn’t bad thing to have in orchestra
- Endlessly wine and dine people in bar? Blow that!
- Bit of brass tool used by meteorologist
- Source of notes might be an anemometer
- Land associated with big noise and singular pack, say, in races, one of a trio?
Buddy explains!
The straight part
We know that "Bit of brass" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bit of brass = wind instrument.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 WIND INSTRUMENT mean?
WIND INSTRUMENT noun- Any musical instrument that produces sound when air flows through it; a reed instrument or brass instrument.