Nice grid. I just about managed it, however you could swap THOMAS and JAMES around and still achieve a correct grid, due to THOMAS obviously being in Thomas and Friends and the British poet Christopher JAMES who would fit in the poet group. So not a unique solution I'm afraid.

Easy but fun, 10/10 in 46 seconds. In response to the below, I've never heard of Christopher James so I didn't realise the alternative solution. Fortunate in a way.

'UK poets' is probably just too broad of a descriptor to be manageable here. In fact, as I looked to re-word the poet description to sufficiently narrow it (I figured Poets' Corner would be a good limited list) I noted a Gordon (though an Aussie) there as well.

Probably should toss the thing and rewrite to disinclude both James and Gordon. There are plenty of other steamies on Sodor, after all.

Thanks for the notes, I will have to be more careful moving forward.