Smelled (6)
I believe the answer is:
reeked
'smelled' is the definition.
(reeking is a kind of smelling)
This is the entire clue.
(Other definitions for reeked that I've seen before include "Smelled strongly and badly" , "Gave off fumes" , "Smelled of smoke" , "Smelt to high heaven" , "Smelled to high heaven" .)