If the spouse begins receiving benefits before «normal (or full) retirement age,» the spouse will receive a reduced benefit. (ssa.gov)
The monthly amount payable if you are a retired worker who begins receiving benefits at full retirement age or if you're disabled and have never received a retirement benefit reduced for age. (ssa.gov)
Unlike a current spouse, a divorced spouse can begin receiving benefits even before the worker has applied for benefits. (elderlawanswers.com)