The Collaborative International Dictionary of English v.0.48:

Smuggler \Smug"gler\, n.
   1. One who smuggles.
      [1913 Webster]

   2. A vessel employed in smuggling.
      [1913 Webster]

WordNet (r) 3.0 (2006):

smuggler
    n 1: someone who imports or exports without paying duties [syn:
         smuggler, runner, contrabandist, moon curser,
         moon-curser]