Related Clues:

• Popular bird to keep in captivity
• Make prisoner bury nothing at first
• Doctor's American — don't let him out
• Put away in a Pinter narrative
• Send to gulag reportedly one by one
• Lock up alien taken from the web
• Confine - person on work experience
• Confine - physician in US hospital
• Hospital doctor (US)
• Confine - assistant medic in America
• Imprison (enemy aliens)
• (American) hospital doctor
• Detain one northern seabird
• Deprive of freedom
• Many a young summer employee