Real = True, exact, no fault, no fake, thrust worthy,
clear,
absolute etc.
Deal =
contact, transaction, barter, exchange etc.
Real Deal = what you are getting is excellent in the above ways
Fred is a real deal
type of person, he'd never let you down. Fred is a real-deal man.
When
George is given a mission, he's always making sure the assignment is perfectly accomplished.
George is a real-deal man.