The word "clear" is also defined as: Grant authorization or clearance for.

In this case, it has to do with the stock exchange (of a particular country) granting authorization for trading of a certain stock, or granting authorization for an IPO, etc.


Exchange-cleared Agricultural Swaps

http://www.euronext.com/fic/000/051/986/519860.pdf


http://www.accessmylibrary.com/coms2/summary_0286-25531094_I...
LOUISVILLE, Ky. -- APB Energy, a division of APB Financial LLC, brokers the first New York Mercantile Exchange cleared over- the-counter (OTC) power product for the PJM-W location.



ICN Unit Cleared to Trade Its Shares on the American Stock Exchange

http://www.forbes.com/feeds/afx/2008/07/07/afx5188274.html

The Italian stock exchange said it has clearedthe initial public offering of Italian renewable energy group ..


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Note added at 3 hrs (2010-04-16 12:46:34 GMT)
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Hi Cristina. Thank you for your kind e-mail. There should be a place you can click onto that says something like "choose this answer as the most helpful." I can't remember the exact wording but it should be visible for you.