1) Building complex 2) Complex 3) Deeds, often good 4) Does a job 5) Does the trick 6) Everything available 7) Has a job 8) Industrial plant 9) Is employed 10) Is in labor 11) Is in operating condition 12) Is in order 13) Labors 14) Opera 15) Opera, literally 16) Operates properly 17) Operates well Found on https://www.crosswordclues.com/clue/works