Can I publish work previously saved to evidence?

Sure! You can do this via the 'Evidence bank' section of the pupil profile.

Click on "My Pupils" then the name of the pupil in question. Navigate to the 'Evidence bank' tab and click the "action" button  (three dots) next to the piece of work. Click "publish", the red cross will turn to a green tick and the work will appear on your school page.