The most common and most likely answer to this crossword clue is the 10 letter word SHELL-LIKE
I've seen this crossword clue in Financial Times
S
H
E
L
L
-
L
I
K
E
Buddy explains!

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 SHELL-LIKE mean?
SHELL-LIKE noun- (especially in set phrases) The ear.
- Having a similar shape to a seashell