The most common and most likely answer to this crossword clue is the 5 letter word DYLAN
I've seen this crossword clue in The Guardian
D
Y
L
A
N
More clues leading to the result DYLAN
- Thomas, poet and Nobel Prize winner
- Andy Warhol finally turned poet
- Singer involved in Normandy landings
- 24 across player, joining 2, 16, 22 down and 27
- Lady excited northern singer
- Element of body language used by musician
- Body language revealing Nobel prize winner
- His appeal is part singing, part songwriting, part body language
- The writer Thomas Hardy languishes, greatly diminished
- Lady Gaga getting new song writer
Buddy explains!

The straight part
We know that "Thomas, poet/Nobel Prize winner" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case thomas, poet/nobel prize winner = dylan.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.