1) Aspect ratio conversion 2) Following a curve 3) Forming a curve 4) Like an arrow in the air 5) Like hook shots 6) Making a trajectory 7) Microwave concern 8) Moving in a curved path 9) Moving like a thrown pigskin 10) Not going straight 11) Proceeding like a lob 12) Traveling like a lawn dart Found on https://www.crosswordclues.com/clue/arcing