The most common and most likely answer to this crossword clue is the 7 letter word EARDRUM
I've seen this crossword clue in Financial Times
E
A
R
D
R
U
M
More clues leading to the result EARDRUM
- A racehorse with energy in first place, one hears
- Oppose relinquishing initial spirit, one hears
- You can't beat this for audio reception
- Heard rumours about listening device
- East Ender’s caught peculiar part of anatomy
- Murder revolving around a personal vibrator
- This one overheard rumour Extra Time isn’t available?
- One of the tympani tried with lid removed – strange
- Read about strange part of human anatomy
- Regularly repaired unusual membrane
Buddy explains!

The straight part
We know that "membrane" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case membrane = eardrum.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 EARDRUM mean?
EARDRUM noun- A thin membrane that separates the outer ear from the middle ear and transmits sound from the air to the malleus.