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.