I'm scratching my head on the QUARTET answer too! Also, the last part of 7 Down is GOOK - how does this relate to "to work out" or "amount to work out"?
7 Down gave me a "B" to start off 11 Across, the clue for which is:-
"Soothing words remain in the memory? On the contrary. (7)
I have B-O-I-E but can't see a word to fit.