when does a "remain clear" instruction end?

Ok Steven. New hypothetical.

Manly Piper 54321 calls approach from the ground desiring to enter Class C
airspace after takeoff. Ralph at approach says "Piper 54321after takeoff
remain clear of the class C" Ralph then goes off shift.

Manly Piper takes off and begins to maneuver around the class C. He calls
approach, and George annswers "Piper 54321 say direction of flight"

Is Manly Piper permitted to enter the class C?
What bearing toes Ralphs instruction have?
What bearing does George's instruction have?
Does the Manly Piper need to know whether it's Ralph or George?
Does George need to know that Ralph told the Manly Piper to stay clear, or does
George get to start with a clean slate and make his own evaluation?

Jose

--
(for Email, make the obvious changes in my address)