There is no "clear configure" command. Here's what I get when I enter 'clear ?' from the 'ASA (config)#' prompt:

capture Clear packets in a particular capture

conn Clear current connection information

console-output Clear messages stored in buffer

counters Clear protocol stack counters

cpu Clear CPU stats

crashinfo Crash information

crypto Clear crypto operational data

dhcpd Clear dhcpd binding | statistics

Am I missing something?

OK. The 'clear configure access-list ' works. Thanks for your help.

This must be a hidden command since it doesn't show up in the help list for 'clear ?'.