Stuck on parsing of 54a. Correspondent in prison, day before death (3-6) The answer is PEN-FRIEND. Can see PEN as prison, possibly FRI as day before and maybe D as death, but a bit lost after that. Any help, please?
Also I have 53a: A cockney idol,bringer of brightness in a mist. The answer is AEROSOL. Sol is the sun, but is Aero a cockney idol?