Steroids will help to support muscle and grow. Steroids do no "tone" anything. If she wants to get leaner, clen would be a good direction to go. The next step would be Nolvadex. Here is how I would suggest use
Clen starting at 20mcg then increase by 20mcg every 2 wks
Nolvadex at 10mg for 4 wks. Then 20mg for 4 wks
Along with the right diet, she will make great progress over an 8 wk period