The season of gales and heavy rain can conspire to unseat climbing plants from their supports. Take a pair of secateurs and reduce the overhang growth which can be considerable and weigh heavily especially following rain. As in the attached image of Schisandra plena on a south facing wall. This weight puts any supporting wires of framework under considerable stress. Add in the forces a blustery day will provide and there is the recipe for collapse. Pruning at this time of year will allow a rejuvenated framework of mature stems to support new growth. At the same time inspect all supporting material, repair, replace or strengthen as necessary.