The Collaborative International Dictionary of English v.0.48:

Cloot \Cloot\, n. [Cf. G. dial. kleuzen to split.] (Scot. &
   Dial. Eng.)
   1. One of the divisions of a cleft hoof, as in the ox; also,
      the whole hoof.
      [Webster 1913 Suppl.]

   2. The Devil; Clootie; -- usually in the pl. --Burns.
      [Webster 1913 Suppl.]