THE CLOCKWORK TESTAMENT OR ENDERBY'S END by ANTHONY BURGESS 161 pages. Knopf. $6.95.
"In many ways a dirty book," Anthony Burgess once warned in the columns of the Yorkshire Post. "Those of my readers with tender stomachs are advised to leave it alone." Critic Burgess, as it happened, was reviewing a novel called Inside Mr. Enderby, ostensibly written by one Joseph Kell but actually the work of a prolific British writer named Anthony Burgess.
Readers who ignored Burgess's cheeky advice may remember that the eponymous poet, F.X. Enderby, was a fairly unprepossessing fellow....