Iron-deficient is a medical condition in which the body does not have enough iron. Iron is an essential mineral that helps the body produce hemoglobin, which carries oxygen throughout the body. Iron-deficiency can lead to anemia, fatigue, and other health problems. The crossword solution for this term is 'CREASED, ' which means having wrinkles or folds. This is a reference to the pale skin that is often associated with iron-deficiency due to the lack of hemoglobin.