TR 3 rear brakes

[mkatzman@email.njin.net (marshall katzman)]

My driver's side rear brake on my 1959 TR-3 does not seem to be releasing
after I try to move my car from a parked position. For about 100 yards I
hear a mettalic sound from the left rear wheel it then goes away and only
returns after I try to start from a parked position. Sometimes the brake
seems to lock or freeze to the point where it is very difficult to move the
car.
Is this a simple adjustment?
Worn part?
Lubrication?
Anyone have any suggestions?

Ciao!
Marshall