Source : Webster's Revised Unabridged Dictionary (1913)

Inspirer \In*spir"er\, n.
   One who, or that which, inspirer. ``Inspirer of that holy
   flame.'' --Cowper.

Source : WordNet®

inspirer
     n : a leader who stimulates and excites people to action [syn: {galvanizer},
          {galvaniser}]