Answer: resigns

AnswerCrossword Clue
RESIGNS

Relinquishes.

RESIGNS

Throws in the towel

RESIGNS

Doesn't wait to get checkmated

RESIGNS
Concedes
RESIGNS
Quits a job
RESIGNSQuits before the king is captured
RESIGNSBows out
RESIGNSQuits before becoming superannuated
RESIGNSSteps down.
RESIGNSAbdicates.
RESIGNSLeaves office
RESIGNSYields.
RESIGNSBows out.
RESIGNSWithdraws.
RESIGNSQuits.
RESIGNSGives up
RESIGNSQuits
RESIGNSGoes away from a job, or comes back to a job
RESIGNSLeaves the office early?
RESIGNSHands in one's notice