The most common and most likely answer to this crossword clue is the 7 letter word LUGHOLE
I've seen this crossword clue in The Guardian
L
U
G
H
O
L
E
More clues leading to the result LUGHOLE
- One hears something in the bath, topless
- Expression of amusement about one of disgust on electronic channel of communication
- Organ recital’s conclusion meets with exclamations of disgust and approval!
- Projection gets everything heard by listener
- Husband, enthralled by opener for Leeds United score, shouted in ear
- Listener left with expression of disgust Spanish shout
Buddy explains!

The straight part
We know that "One hears" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one hears = lughole.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 LUGHOLE mean?
LUGHOLE noun- Ear