Ah, I see, thanks Culmer. I suspect this is chance, but I’m reminded of a puzzle where solutions in symmetrical grid positions were anagrams of each other. Was it a Brendan perhaps? Someone might know
https://www.fifteensquared.net/2017/08/05/guardian-prize-27262-by-brendan/
This is the Brendan puzzle I was thinking of (from 5 years ago!). It contains several pairs of answers in opposing grid positions which are anagrams of each other as well as other solutions which are ‘doubles’ - all alluded to by the theme solution MIXED DOUBLES. The blog doesn’t quite get there, so scroll down to post 15…