10d an anagram of an abbreviation of about + this. The answer is an archaic synonym of talks.
I've got the 12 members of the team but I can't make sense of the rest of the preamble. The 6-word phrase? 21ac? (staring at it, can't make any sense of it, even after spotting possibly existing words in its middle) ; the traditional thematic victim? I can't find any of these, let alone connect them to the line-up I highlighted in the grid. Any hints, please?