18A. One downcast when surrounded by whitish fence - P?L???D?
6D. In private, as track may be? "Off the ????M?"
25A. Last part of an activity or campaign - ?O??- ?T?E??
29A. Fit of giggling and mirth - ???G?T??
41A. Stray US soldier returns in frock - ???R???
I have loads more to answer but with help maybe I can finish the rest. My brain has "fogged up" like the weather.
Thanks for any help. Hoaroak