1. [n]  a person who breeds and trains hawks and who follows the sport of falconry
2. [n]  someone who travels about selling his wares (as on the streets or at carnivals)

HAWKER is a 6 letter word that starts with H.

1. \Hawk"er\, n.
   One who sells wares by crying them in the street; hence, a
   peddler or a packman.
   
   

2. \Hawk"er\, v. i.
   To sell goods by outcry in the street. [Obs.] --Hudibras.
   
   

3. \Hawk"er\, n. [Cf. AS. hafecere. See 1st {Hawk}.]
   A falconer.