Is the poetic "-èd" acceptable in modern verse? Do modern-day poetic critics see it simply as a lazy way of adding a syllable to a line? Myself, I am using it in my current poem to romanticise a word that would otherwise be pedestrian, even clinical - but I am worried that it may be archaic. My word is "prescribèd".
I would read it as archaic - my understanding is that historically, ALL "ed" endings were pronounced - when we read Shakespeare, we're supposed to pronounce the "ed" endings in order to get the rhythm and rhyme correct. But in a modern piece, with all the other pronunciations fitting modern standards? Yeah, it would read like a cheat, to me.
I think it's a bit archaic as well, though I've seen some modern poets use this technique. Given the choice, I wouldn't use it, but that's totally up to you. I think it just sounds and looks weird with longer words like "prescribed." Just my opinion.
Unfortunately, I can't remember off the top of my head. The poems I saw were in magazines and anthologies, and I don't really know the poets. If you really want, you can look at some modern poems in magazines and anthologies, and see if you can find any examples there. If I remember or come across any specific examples, I'll let you know.