Source : Webster's Revised Unabridged Dictionary (1913)

Clerical \Cler"ic*al\, a. [LL. clericalis. See {Clerk}.]
   1. Of or pertaining to the clergy; suitable for the clergy.
      ``A clerical education.'' --Burke.

   2. Of or relating to a clerk or copyist, or to writing.
      ``Clerical work.'' --E. Everett.

   {A clerical error}, an error made in copying or writing.

Source : WordNet®

clerical
     adj 1: of or relating to clerks; "clerical work"
     2: of or relating to the clergy; "clerical collar"
     3: appropriate for or engaged in office work; "clerical
        skills"; "a clerical job"; "the clerical staff"