Its not clearing using
or from administrator
This issue appears to have been introduced in Update 3, and has been reported in this bug ticket: Bug#3923429 - Queries stay cached even after clearing them in the administrator panel. Take a look at the 3rd vote up from the bottom (currently the top vote, but that could change as more votes get added) which specifically mentions <cfobjectcache>. You might want to add your vote to the ticket, and add comments if you can provide additional information on how to reproduce the issue.