Possible Clues:

• In the light of this one might have formerly been a legal luminary
• It's for a former barrister to throw light on the subject
• Make light of the S.C.?
• Candle bracket - earthwork - head
• A candlestick is fine at university
• Candleholder - head - mug - fortification
• One may carry a torch
• Student challenge to wit at one time
• Ornamental wall-bracket for candle or light
• Formerly at the Bar, but you can carry it off lightly