A mustache might tickle it (4)
I believe the answer is:
nose
(Other definitions for nose that I've seen before include "Facial organ" , "Conk (slang)" , "Deserving blame" , "Sense of smell; proceed cautiously" , "Aroma of wine" .)
I believe the answer is:
nose
(Other definitions for nose that I've seen before include "Facial organ" , "Conk (slang)" , "Deserving blame" , "Sense of smell; proceed cautiously" , "Aroma of wine" .)