I've no longer got my grid, Bigf - but it's horizontal, near the top. It's not a colour, just a word that a colour could easily precede. As you've got the quotation, think of fairly famous characters in the work.
Thank you for your prompt reply Malone. I had seen this particular character in the grid, but was misled by an earlier post which suggested I should be looking around the 34ac area.
All done now.
I have a full grid and have identified all of the spare words, but I do not understand what is meant by "logical interpretation of their first and last letters". A hint would be gratefully received.