Part of the ear or brain (4)

I believe the answer is:

lobe

(Other definitions for lobe that I've seen before include "Appendage to ear" , "Rounded projection of a larger structure" , "Rounded part (of organ)" , "could be site of a 24 [STUD]" , "part of brain" .)

I've seen this clue in the USA Today and the Universal.

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