"How to delete cookies for a specific site" is a good question but seems to be about Chrome on a computer rather than on iOS.
This question seems to be just about iOS Safari (rather than Chrome).
(And this forum doesn't seem to have an answer yet.)
I found a note from myself (dated more than 1 year ago) saying that this bookmarklet from http://ostermiller.org/bookmarklets/cookies.html should work, but I haven't been able to get it to work on iOS Chrome today and don't know what my note was referring to.
Any suggestions for how I can clear cookies on iOS Chrome for one particular domain (rather than erasing all cookies)?