Hate the short ones and the hyphenated. 12a Group of students finally pay attention (?e?r). I thought "Hear". Then 17d Modernist poet initially bathed in inspiration not to be forgone (m?S?-s?e). I thought "Must-see".
I think 17d is Muse round TSE(liot).
6a Easy to understand one covering the eyes touring capitals (5). I think the answer is Lucid but can't quite parse this?