Actually, no, it is not for cleaning. It is a safety holder for a match, to start the propane ignitor in case the "pseudo-electric starter spark thingy" (technical term) does not work and you do not have to reach your hand in all the way....
You place a match in the loops (separate the wires a bit), light the match, then reach in with it the light the propane. Shown here on a gasser...
Nifty I had one on a used performer for years and never understood what the heck it was for. Now I have one on the WSC and I know what it is now but still won’t use it...