The term PART OF WICKET is solved by the crossword solution BAIL, which is a four-letter word. BAIL is a term used in cricket to refer to the two wooden pieces that form the wicket, which is the three-stump structure that the batsman must defend. The two pieces of wood are known as the bails and they sit on top of the stumps. When the ball hits the wicket, the bails are dislodged and the batsman is out.