The most common and most likely answer to this crossword clue is the 7 letter word RHONCHI
I've seen this crossword clue in Financial Times
R
H
O
N
C
H
I
More clues leading to the result RHONCHI
- Rattling noises from catarrh on chill’s appearance
- Bit of catarrh on child producing wheezing sounds
- Blowing horn, chime without me whistling sounds
- Coarse breathing from a pair of Greek characters inhaling nitrogen
- Complaint of boss losing foot in rigorous imprisonment
- Low-pitched sounds from horn damaged at church by one
- Rhino blundering around church making high-pitched noises
Buddy explains!
The straight part
We know that "Rattling noises" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rattling noises = rhonchi.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.