Best Friends

[toalisi]

I have the names of all the famous dogs except for the unclued 1a - (11) A?C?O?H?N?S.

Any suggestions please?

[GRM]

You are not alone toalisi. I have spent longer trying to resolve this entry, despite using all the available 'aids', than on the whole of the rest of the puzzle!

[GRM]

toalisi. See: http://www.theanswerbank.co.uk/Quizzes-and-Puz zles/Crosswords/Question652137.html