Answer: uncle

AnswerCrossword Clue
UNCLETHRUSH adversary of '60s TV
UNCLE"I give!"
UNCLECry of submission
UNCLEJeb, to Jenna and Barbara
UNCLEDad's brother
UNCLESam, for one
UNCLE"The Man from ..": 1960s spy series
UNCLEAunt's mate
UNCLEConcession word
UNCLELeo, to Jerry, on "Seinfeld"
UNCLEMale relative
UNCLEReunion attendee
UNCLEFester, to Morticia
UNCLESam or Ben
UNCLE"No more!" (h,h)
UNCLEFamily reunion attendee
UNCLERelative known for quitting?
UNCLETitle for Remus
UNCLE"I surrender!"
UNCLEGiving word?
uncleto concede defeat
UNCLEVanya or Wiggily
UNCLE"I give up!"
UNCLENapoleon Solo's org.
UNCLEQuitter's word
UNCLEWord of surrender
UNCLEVanya or Sam
UNCLESam, e.g.
UNCLETom or Sam
UNCLEWord of submission
UNCLETom or Vanya
UNCLE"Enough!"
UNCLEVerbal white flag
UNCLE"I can't win!"
UNCLE"I concede!"
UNCLEDonald, to Dewey
UNCLEGiving-up word
UNCLECreon, to Antigone
UNCLEYielder's cry
UNCLEWord of capitulation