Ah.... thanks! Wasn't sure if 6 across's referred to ABBA as "across" (plus te) is an anagram of Socrates and so was looking for something that wasn't there!
finished all but two - my excuse is I've been out most of the morning...
stuck on 2d: Parts of an organ in church bear cracks that's about right C?R???A
and
10ac: Babble as a baby, Dancing Queen! ?A???R
thanks