Horn; nose (6)
I believe the answer is:
hooter
I believe this is a double definition.
'horn' is the first definition.
(I know that horn can be written as hooter)
'nose' is the second definition.
(hooter can informally mean someone's nose)
(Other definitions for hooter that I've seen before include "Factory siren" , "Siren, steam whistle" , "Car horn or slang nose" , "Siren; nose (sl.)" , "owl?" .)