Serious poem about Lee - heartless guy (5)

I believe the answer is:

elegy

I'm a little stuck... Click here to teach me more about this clue!

'serious poem' is the definition.
'elegy' can be an answer for 'poem' (elegy is a kind of poem). I'm not sure about the 'serious' bit.

'about lee heartless guy' is the wordplay.
'about' is an anagram indicator.
'heartless' suggests removing the centre.
'guy' with its centre taken out is 'gy'.
'lee' is an anagram of 'ele'.
'ele'+'gy'='ELEGY'

Can you help me to learn more?

(Other definitions for elegy that I've seen before include "Type of poem" , "Work of poet" , "Plaintive poem" , "Sad work" , "Song of lamentation" .)

I've seen this clue in The Daily Express.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.