The Collaborative International Dictionary of English v.0.48:

Clearcole \Clear"cole`\, n. [F. claire colle clear glue; clair
   clear (f. claire) + colle glue, Gr. ?.]
   A priming of size mixed with whiting or white lead, used in
   house painting, etc.; also, a size upon which gold leaf is
   applied in gilding.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Clearcole \Clear"cole`\, v. t. [imp. & p. p. Clearcoled; p.
   pr. & vb. n. Clearcoling.]
   To coat or paint with clearcole.
   [Webster 1913 Suppl.]