Sorry Chrisg, my "Yippee" in post 8 was meant to indicate that "relativise" was not correct and so I privided an additional letter. The "Yippee" bit was my delight that the first clue was proving difficult. Great heavens! I was about to quote Terry in post 10 when I noticed The Joker had solved it simultaneously in Post 9. No wonder he was miffed. Sorry again The Joker, please put it down to my (rapidly) advancing years. I only noticed it this minute.
Chrisg, sorry for misleading you.
"Never odd or even" is the palindrome. How did you get "relativise" from the clue?