Man pages matching name cluster in section 7:

cluster.7.tr	debian 10 / manpages-tr
cluster.7.zh_CN	debian 10 / manpages-zh
cluster.7.zh_TW	debian 10 / manpages-zh
cluster.7.tr	debian 11 / manpages-tr
cluster.7.zh_CN	debian 11 / manpages-zh
cluster.7.zh_TW	debian 11 / manpages-zh
cluster.7.zh_CN	debian 12 / manpages-zh
cluster.7.zh_TW	debian 12 / manpages-zh