The dray group foxed me in how to explain the link but apart from that great grid

yeah, I can see how it is difficult to describe the link. I've added a couple of more keys but it's still not quite right .. I mean it's right but clumsy. I think I would be saying back words backwards. someone will come up with a better solution :)

Very well done, thanks

Mac, I put words spelled backwards makes other words, that worked.
Lengthy I know but...it was the only one I got :-(
Anyway, good grid. Thanks for posting.

thanks freddgar, there are several similar combinations that will work, however I don't think I've covered every combination. Anyway people will know in themselves if they are correct or on the right lines without being awarded the points .. and I think that is all that matters .. that and fun :)

Didn't like pebble

Semordnilaps may be the useful word, here :)