The term CENTER, FOR ONE can be solved by two crossword solutions: LINEMAN (7 letters) and LINEPERSON (10 letters). A LINEMAN is a person who works on the installation, maintenance, and repair of electrical power systems. Linepersons are similar to linemen but they are more specialized in the installation and maintenance of overhead power lines. Both linemen and linepersons work in hazardous conditions and require extensive safety training.