Personally I think your question is reasonably clear, as is the topic. The topic has been discussed before; you should review previous postings in this site before opening a new topic
There is no "job" or JCL to accomplish what you want to accomplish. However, since CICS is using the PDS, it is probably unwise to delete all the members; presumably CICS needs at least some of the members to function, or it would not have the PDS allocated to it.
You might want to investigate "file" 713 at www.cbttape.org
. However, if the PDS is actually a PDSE, the EMPTYPDS program in the "file" won't work; it requires exclusive control of the data set.