Puncturing endless drivel, singular poet (5)
I believe the answer is:
frost
'poet' is the definition.
(Frost is an example)
'puncturing endless drivel singular' is the wordplay.
I cannot really see how this works, but
'singular' could be 's' (abbreviation sometimes used in dictionaries) and 's' is located in the answer.
'drivel' could be 'rot' (rot is a kind of drivel) and 'rot' is present in the remaining letters.
A single letter 'f' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for frost that I've seen before include "Coldness of manner" , "Chilly feeling" , "Rime" , "Frozen deposit" , "Icy condensation" .)