It is alleged that he committed 17 indecent assaults, 12 offences of indecency with a child, and two attempted serious sexual offences between 1974 and 1983. The offences relate to three children.
During the 40-minue hearing, Clarke turned down the offer of a hearing loop, telling the court clerk his own hearing aid had a new battery.
The pensioner, from Erdington, Birmingham, was told that six witnesses are due to give evidence at his trial, which is expected to start on 5 December and last for around two weeks.
Clarke wore blue trousers, a beige jacket and wide-rimmed, yellow-tinted glasses.
He used a walking stick and a hand-rail to support himself as he left court on unconditional bail.