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So far I have only entered the two 13s into the RH grid confirmed by Sarumite as being in the right place.
Have also entered a 12 letter answer in the lower of the 2 positions in the LH grid again confirmed by Sarumite.
Acciaccatura would fit nicely with Pulchinello. The only italian spelling I could find was without the H leaving it 1 letter short.
Thanks for your help Both. I have most of the answers so now only need to fit them in. So if you need any please ask.