Hoarsely talk of right snake (4)
I believe the answer is:
rasp
'hoarsely talk' is the definition.
'rasp' can be an answer for 'talk' (rasping is a kind of talking). I am unsure of the 'hoarsely' bit.
'right snake' is the wordplay.
'right' becomes 'r' (common abbreviation).
'snake' becomes 'asp' (asp is a kind of snake).
'r'+'asp'='RASP'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for rasp that I've seen before include "Grating noise; file" , "Coarse file or grating sound" , "Make a grating noise" , "fruit" , "Filing tool" .)