Ask hoarsely for right snake (4)
I believe the answer is:
rasp
'ask hoarsely' is the definition.
I can't tell whether this defines the answer.
'for right snake' is the wordplay.
'right' says to take the final letters (the letter on the right of the word).
'snake' becomes 'asp' (asp is a kind of snake).
The final letter of 'for' is 'r'.
'r'+'asp'='RASP'
Can you help me to learn more?
(Other definitions for rasp that I've seen before include "Grating noise; file" , "Make a grating noise" , "Abrade" , "It is used to grate" , "Harsh grating sound" .)