Said solver dribbles from part of the ear (7)

I believe the answer is:

utricle

I'm a little stuck... Click here to teach me more about this clue!

'part of the ear' is the definition.
(I know that utricle is part of the vestibule of the ear)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for utricle that I've seen before include "bag" , "Cell" , "Part of the internal ear" .)

I've seen this clue in The Guardian.

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