Sewing is a craft that involves stitching fabric together to create clothing, accessories, and other items. The term 'sew up' refers to the process of completing a sewing project by finishing the edges and securing the seams. The crossword solutions for the term 'sew up' include 'HEM' (3 letters), which is the process of folding and stitching the edge of a garment; 'DARN' (4 letters), which is the process of repairing a hole in fabric with a needle and thread; 'ENSURE' (6 letters), which is to make certain that something will happen; 'STITCH' (6 letters), which is the process of joining two pieces of fabric together with a needle and thread; 'END' (3 letters), which is the conclusion of a sewing project; 'ICE' (3 letters), which is the process of pressing fabric with an iron; 'MEND' (4 letters), which is the process of repairing a tear or hole in fabric; 'ASSURE' (6 letters), which is to guarantee that something will happen; and 'CLINCH' (6 letters), which is the process of securing a seam with a few stitches.