10a Repulsive reading indeed, but it comes with the post ?A???A??
11a Tentative suggestion might sound like relief on reflection ??E?E?
27d Tubular play thing to blow in the wind O???
Logarithms is the answer for you Clare - it is an anagram of Klaz' reply
you have word of Honour for 8ac - that's where you would need the O from Logarithms https://www.merriam-webster.com/dictionary/logarithm
Klaz, you did great, you were on the right track :)
Clare, a walk will do you good to clear your head :)
I was delighted to have won recently on this crossword, so, it's good to give back a bit and hope yer lucky :)