The term 'ROSE SUPPORT' refers to the support structures that are used to help roses grow. The two crossword solutions for this term are 'TRELLIS' (7 letters) and 'STEM' (4 letters). A TRELLIS is a structure made of wood, metal, or plastic that is used to support climbing plants such as roses. It is usually made up of vertical posts with horizontal bars connecting them. A STEM is the main part of a rose plant that supports the leaves, flowers, and buds. It is also responsible for transporting water and nutrients from the roots to the rest of the plant.