BARBER:

To sign "barber" just add the AGENT sign to "cut hair."
In everyday usage though you can just sign, "TOMORROW I GO CUT-HAIR" (Tomorrow I'm going to the barber), or "I WANT WORK CUT-HAIR" (I want to be a barber), or "YOUR DAD MAJOR CUT-HAIR?" (Is your dad a barber?)

CUT-HAIR: