The Collaborative International Dictionary of English v.0.48:

Collar \Col"lar\, v. t. [imp. & p. p. Collared; p. pr. & vb.
   n. Collaring.]
   1. To seize by the collar.
      [1913 Webster]

   2. To put a collar on.

   3. to arrest, as a wanted criminal. Same as put the collar
      on.
      [PJC]

   To collar beef (or other meat), to roll it up, and bind it
      close with a string preparatory to cooking it.
      [1913 Webster] collarbone