Answer: sealthedeal

AnswerCrossword Clue
SEALTHEDEAL

Close convincingly

SEALTHEDEAL

Shake, perhaps

SEALTHEDEAL

Complete negotiations

SEALTHEDEAL
Sign a contract, perhaps
SEALTHEDEAL
Successfully complete negotiations
SEALTHEDEALShake on it
SEALTHEDEALConclude negotiations
SEALTHEDEALMake it official
SEALTHEDEALShake hands