The term 'ROUND END' can be solved by the crossword solutions PEEN and BELL. PEEN is a verb meaning to hammer or chisel a surface, usually metal, into a desired shape. BELL is a noun referring to a hollow instrument made of metal or other material that produces a ringing sound when struck. Together, these two words form the phrase 'round end, ' which is used to describe the shape of an object that has been hammered or chiseled into a circular shape.