Elves have big ones, stereotypically
I believe the answer is:
ears
(Other definitions for ears that I've seen before include "Organs for 7 down" , "Shakespeare 'Friends, Romans, countrymen, lend me your . . . .'" , "'''Friends, Romans, countrymen, lend me your ...'' (Julius Caesar) (4)'" , "Listening organs" , "''He who has ... to hear, let him hear'' (bible)" .)