Thanks all - have the message and have taken drxx's answer for 44 as it provides the necessary extra letter. Had already located the 5a jumble, but the next two do not fill the 8 letter rectangle - a 6 and a 5 and no indication of what not to colour. Also 19 ac proving v troublesome. Is there a a author in there? My answer is an example of the first word in the clue.