Ask hoarsely for broken spar (4)
I believe the answer is:
rasp
'ask hoarsely' is the definition.
I can't tell whether this definition defines the answer.
'broken spar' is the wordplay.
'broken' indicates an anagram.
'spar' is an anagram of 'RASP'.
'for' is the link.
Can you help me to learn more?
(Other definitions for rasp that I've seen before include "sort of berry?" , "It is used to grate" , "Smoother" , "Harsh noise - file" , "Harsh grating sound" .)