Singer very upset, ignoring small piece of advice about poem (8)
I believe the answer is:
yodeller
'singer' is the definition.
(yodeller is a kind of singer)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for yodeller that I've seen before include "Alpine singer" , "Singer using falsetto" , "Vocalist" , "Mountain air for him" .)