Maybe if you go via 'bankrupt' as an intermediate synonym, Neveracrossword - but most senses of 'bust' = damage of some sort (apart from the statue/bust example, of course).
The first line tells you to choose the clues that didnt have their 1st letters taken off.
The last line tells you they are boys names?
The highlighted spells out the name of the poem ??
Personally, I think Ifor has produced a very elegant puzzle that (with great economy) nails its subject perfectly. To paraphrase -
If you keep your head screwed on when all around you are losing it, you'll be a lot of things - but most of all, you'll be a man (+ all of the attendant virtues of that state - given a certain Victorian outlook, of course). And the icing on the cake - the men = the puzzle title! 'What's not to like' (as they say these days)?
Thanks ros and ProfessorM.
I did not understand how the grid was reflecting the poem.
But after explanation from both of you, I see why it is a wonderful creation. Ifor always has challenging and satisfying crosswords.