I'm so embarrassed that it took me so long to put two and two together. First I saw the MCs, great. Letters spelled nothing. "MC, well maybe they are introducing the correct letters..." Nope that didn't help. Gee, "heard" -Arb ase rum (mis-circled one darn it)be, ee ee nus ann eat ur...what?? Ok, add back the first letter,
BARB1AMean comment[----] BASE
DRUM14AJust beat it![----] ABE16AMary's courter[---] BEE21AMorphological contest[---] SEE32AMake certain[---] GNUS41AManed creatures[----] MANN42A"Manfred" concluder[----] PEAT44AMarshy component[----] HUR46AMajor charioteer[---]. AHA! Barbies Dream ABC Newsman Peter, well that makes sense but it makes no sense, why would she be humng up on a deceased news anchor??? DOH, not
DRUM14AJust beat it![----],
BOW13AMovies' Clara[---], so Barbie's beau ABC Newsman Peter...but her beau is not Peter Jennings it is Ken...AARRRGGH KEN JENNINGS MC, well just brilliant! Now if the prompt had been "questionable" American personality or "Perilous" American personality or "The answer to the meta is someone who is a questionable American personality" I might have gotten it earlier

Thanks for the challenge Mikey, fun one.