Clean excess dirt, dust and mold off the wicker piece before starting your refinish. This can be done with a clean damp cloth, a hose or an air compressor. If the piece has been relatively protected, a dry brush may be all that is needed.
Fill very deep chips in the paint with either wood filler or primer paint, allowing each coat to dry completely before adding the next coat.
Sand down any rough spots such as where you have applied filler or primer until they are smooth.
Wipe away any dust from sanding with a clean cloth.
Dip a paintbrush into the deglosser and apply it generously all over the piece. The brush aids in getting the liquid around each reed in the wicker. Be certain that deglosser contacts all sides of every surface of the piece.
Use a clean dry brush and dab away excess deglosser. Between each dab, wipe the brush free of deglosser on a dry paper towel.
Use spray paint to apply a new coat of paint to the wicker piece. Spray paint goes on more easily than application with a brush, and is better at getting into all the tight spaces of wicker construction.