1) Bloodhound, at times 2) Perfume tester 3) Schnoz 4) Schnoz, functionally 5) Slang for the nose 6) Slang for a blow to the nose 7) Snoot Found on https://www.crosswordclues.com/clue/smeller
Smell'er noun 1. One who smells, or perceives by the sense of smell; one who gives out smell. 2. The nose. [ Pugilists' Slang] Found on http://www.encyclo.co.uk/webster/S/127